Slashdot Mirror


EPA Mulling Relaxed Radiation Protections For Nuclear Power

mdsolar sends this news from Forbes: Both proponents and opponents of nuclear power expect the Environmental Protection Agency in coming months to relax its rules restricting radiation emissions from reactors and other nuclear facilities. EPA officials say they have no such intention, but they are willing to reconsider the method they use to limit public exposure—and the public's level of risk.

At issue is a 1977 rule that limits the total whole-body radiation dose to any member of the public from the normal operation of the uranium fuel cycle—fuel processing, reactors, storage, reprocessing or disposal—to 0.25 millisieverts per year. (This rule, known as 40 CFR part 190, is different from other EPA regulations that restrict radionuclides in drinking water and that limit public exposure during emergencies. Those are also due for revision.) "We have not made any decisions or determined any specifics on how to move forward with any of these issues. We do, however, believe the regulation uses outdated science, and we are thinking about how to bring the regulation more in line with current thinking," said Brian Littleton, a chemical engineer with EPA's Office of Radiation and Indoor Air."

230 comments

  1. Can't get enough by Anonymous Coward · · Score: 0

    About time. I just can't get enough radiation.

        -Homer Simpson

  2. About time by Anonymous Coward · · Score: 4, Funny

    It's good to see the EPA finally considering relaxing some of its uptight, business-hostile regulations. No wonder the US is losing ground to the developing world when for a few decades it has pushed this regulatory regime that holds industry back and has really harmed wider adoption of nuclear energy. As the case of China shows, the population is willing to accept an increase in pollution as long as the country sees strong economic growth and (something to think of after the "Obamacare" wrangling) advanced and affordable health services are available to somewhat make up for the possible decrease in life expectancy that said pollution might entail.

    1. Re:About time by Anonymous Coward · · Score: 0, Offtopic

      I'm gonna give you the benefit of the doubt and mod your post as "Funny".

    2. Re:About time by Jeremy+Erwin · · Score: 4, Insightful

      As the case of China shows, the population is willing to accept an increase in pollution

      It's amazing how much the population is willing to accept, provided that they have no say in the matter.

    3. Re:About time by DNS-and-BIND · · Score: 3, Insightful

      Well, jeez, in the case of China, the alternative is "stark poverty" so it's not really a choice. Forty years of Marxism reduced their people to equality - equally poor. The Communist Party hijacked the people's revolution onto the capitalist road and it's been all up since then. And the EPA really does have uptight, business-hostile practices. Just ask the people who work there what they think about the very idea that businesses should be allowed to exist, much less make a profit.

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
    4. Re:About time by TubeSteak · · Score: 1

      It's amazing how much the population is willing to accept, provided that they have no say in the matter.

      China is aiming to build enough nuclear capacity to beat the USA + France (#1 and #2 users of nuclear power) combined.

      --
      [Fuck Beta]
      o0t!
    5. Re:About time by linearz69 · · Score: 2

      China is aiming to build enough nuclear capacity to beat the USA + France (#1 and #2 users of nuclear power) combined.

      Mr. President, we cannot allow a nuclear capacity gap!

    6. Re:About time by Solandri · · Score: 5, Informative

      It's good to see the EPA finally considering relaxing some of its uptight, business-hostile regulations. No wonder the US is losing ground to the developing world when for a few decades it has pushed this regulatory regime that holds industry back and has really harmed wider adoption of nuclear energy.

      You're trying to be sarcastic, but your words are quite literally true. 0.25 mSv is:

      • 12x the radiation you get from a chest x-ray
      • 6x the radiation you get from a 5 hour airliner flight
      • 3.5x the radiation you get from living in a stone, brick, or concrete house for a year
      • about half the radiation dose from a mammogram
      • an eighth the radiation dose from a head CT scan
      • 1/28th the radiation dose from a chest CT scan

      If the 0.25 mSv limit were applied consistently to other aspects of our lives, we'd ban mammograms and CT scans, limit people to a dozen chest x-rays in a year, restrict pilots and stewardesses to just 30 hours of flight time per year, and severely curtail brick, stone, and concrete as building materials. If the proposal someone made below to reduce the limit to 0.025 mSv were carried out, we'd have to ban air travel and chest x-rays altogether.

    7. Re:About time by Anonymous Coward · · Score: 0

      restrict pilots and stewardesses to just 30 hours of flight time per year

      As a point of reference, civilian flight crews for many carriers fly about 900 hours a year.

    8. Re:About time by AmiMoJo · · Score: 2

      Nuclear isn't profitable without heavy subsidy. It seems only fair that a business which is entirely dependent on government hand-outs should have to play by some fairly strict safety rules.

      The alternative is to just let them get on with it, in which case they will be filing for bankruptcy next Tuesday when they find they can't get any insurance, can't afford to run the plant and can't deal with all the lawsuits coming their way. I'm up for that, but only if every penny of subsidy is immediately transferred to renewables.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    9. Re:About time by AmiMoJo · · Score: 0

      Nuclear plants don't emit an even level of radiation in all directions. They emit radioactive particles that then move around on the wind, in the soil and in the water. These particles can accumulate, so the level needs to be kept very low so that they can keep dispersing.

      Your comparison with things like x-rays and airliner flights is bogus because those are one-time exposures from outside the body. The goal of this rule is not only to limit that kind of exposure, it is to limit the build-up of radioactive particulate matter in the environment and in people's bodies.

      Relaxing the rules may in theory be safe. The problem is that if you give people an inch they will take a mile. We knew that in the 1970s, but despite Fukushima the EPA seems to have forgotten it now.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    10. Re:About time by gdshaw · · Score: 2

      Nuclear plants don't emit an even level of radiation in all directions. They emit radioactive particles that then move around on the wind, in the soil and in the water. These particles can accumulate, so the level needs to be kept very low so that they can keep dispersing.

      0.25 mSv is a measure of the dose received, not the radioactivity emitted. A given amount of radioactivity inside your body will result in a larger dose than the same amount outside, so the effects you describe should already have been allowed for.

      Besides, if you believe in the LNT model (which current standards are based on) then it makes little difference whether you give 0.25 mSv/yr to ten people or 2.5 mSv/yr to one person (both being well below the level at which acute effects become significant). Bioaccumulation is an issue, but merely having an uneven distribution should not be.

      Relaxing the rules may in theory be safe. The problem is that if you give people an inch they will take a mile. We knew that in the 1970s, but despite Fukushima the EPA seems to have forgotten it now.

      Bear in mind that the safety precautions needed to prevent very low level emissions are different to those needed to prevent catastrophic meltdowns. Focussing attention and resources on the former rather than the latter isn't necessarily in the best interests of safety.

    11. Re:About time by Mr+D+from+63 · · Score: 5, Interesting

      Nuclear plants don't emit an even level of radiation in all directions. They emit radioactive particles that then move around on the wind, in the soil and in the water.

      Did you just make this shit up? Completely false. Radioactive particles are defined as contamination, and there is no contaminated material released from nuclear plants, except for a few cases of tritium leaks. But, tritium is quite benign and doesn't "travel around on the wind". Your statement displays the common misconceptions nuclear power, radiation, and the associated risks.

      It is funny how people's definitions of "safe" change depending on the subject. You can get multiple acute radiation doses, each many times above present day safety limits, and your risk of any physically threatening results are still many times less than riding in a car for just a short trip. You have so many higher risk things you just accept. How about leaching chemicals from semiconductors or even your cookware? How about pesticides? How about the risks listed on every medication we take?

      For those that don't buy into the FUD, here is a good overview of where we stand today with assessing risks of very high acute exposure medical tests.

      http://www.scientificamerican....

      A key excerpt;

      "All these estimates share a serious flaw. Among survivors exposed to 100 mSv of radiation or less—including the doses typical for CT scans—the numbers of cancer cases and deaths are so small that it becomes virtually impossible to be certain that they are significantly higher than the rate of cancer in the general population. To compensate, the National Research Council and others based their estimates primarily on data from survivors who were exposed to levels of radiation in the range of 100 mSv to 2 Sv. The fundamental assumption is that cancer risk and radiation dose have a similar relationship in high and low ranges—but that is not necessarily true."

    12. Re:About time by Mr+D+from+63 · · Score: 2, Insightful

      All energy sources are subsidized to some extent, as most countries place great economic value on having lower cost electricity. If all subsidies were removed, gas would completely dominate, followed by coal and nuclear. Solar and wind would not stand a chance. Solar, on a dollar per kwh generated basis, receives subsidies many times greater than any of our traditional sources, as does wind.

      I'm all for equal subsidies on all forms of power, but I'd rather have diversity and not be totally reliant on shale gas.

    13. Re:About time by drinkypoo · · Score: 0

      If the 0.25 mSv limit were applied consistently to other aspects of our lives, we'd ban mammograms and CT scans, limit people to a dozen chest x-rays in a year,

      X-Ray techs wear lead aprons for a reason. Your assertion that we would limit chest X-Rays because they are one-twelfth of this number is completely bananas.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    14. Re:About time by AmiMoJo · · Score: 0

      Did you just make this shit up? Completely false.

      Sorry bro, you are full of shit.

      http://en.wikipedia.org/wiki/N...

      References:
      http://www.epa.gov/radtown/nuc...
      http://en.wikipedia.org/wiki/N...
      http://www.radiationanswers.or...
      http://www.iaea.org/Publicatio...
      http://en.wikipedia.org/wiki/N...
      http://www.radiationanswers.or...
      http://www.nrc.gov/about-nrc/r...

      It is funny how people's definitions of "safe" change depending on the subject.

      Note how I didn't say it was unsafe. You made that up and then used it as a straw man. My point was actually that it is safe, but that the rule has developed based on more than just the relative safety of that one number.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    15. Re:About time by AmiMoJo · · Score: 0

      PS. apologies for the excessive link copy/pasta, genuine mistake on my part. Doesn't affect my argument though, or validate your bullshit.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    16. Re:About time by AmiMoJo · · Score: 1, Informative

      Solar is already way cheaper than nuclear, has been for a few years now. Wind, geothermal and hydro even more so.

      I agree we need diversity, but the massive drain nuclear is placing on the available funding distorts the market. It's so bad that in the UK we have to guarantee well above the normal selling price of electricity for the lifetime of the plant just to get some Chinese guys to build it for us, because no-one here wants to. They know that Scotland's wind and eventually other renewables making it a losing proposition otherwise, and even with the vast subsidy it only works if the Chinese build and run it at a knock-down price.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    17. Re:About time by Mr+D+from+63 · · Score: 1

      Lots of links, but none of them assert that nuclear plants are "emitting particles traveling on the wind".

    18. Re:About time by sjames · · Score: 1

      We would also have to live in shielded homes and never go outside due to background radiation (global average 24mSv/a)

    19. Re:About time by Mr+D+from+63 · · Score: 2, Insightful

      Solar is already way cheaper than nuclear, has been for a few years now.

      You'll have a hard time backing that claim up with real numbers. Solar doesn't come close when it comes to total cost of producing MWh on an annual basis. Many confuse price with cost, and on top of that forget that pricing is quite artificial due to production credits.

    20. Re:About time by Mr+D+from+63 · · Score: 1

      Actually, coal plants are the ones that emit radioactive particulates into the atmosphere. Nuclear plants don't, and as the primary other available baseload generator therefore can historically be credited with offsetting more radioactive emissions from coal than any other single energy source.

      So, if that kind of thing truly scares you, you should be glad we've had those nuke plants running for so many years. You can "breathe easier"!

    21. Re:About time by sjames · · Score: 1

      In what way does Fukushima have anything to do with normal operation?

    22. Re:About time by sjames · · Score: 1

      Read the last paragraph of the section of the Wikipedia article you pointed us to to see why this is all insignificant.

    23. Re:About time by Anonymous Coward · · Score: 0

      Ask Germans, google the recent slashdot article.

    24. Re:About time by Applehu+Akbar · · Score: 4, Informative

      In 1988 when the big nuclear three-holer went in near Phoenix, utility ratepayers were aghast at the idea of paying $2 billion apiece for the reactors. Today, we're all thankful now that the plant is the state's lowest cost provider of power.

      Meanwhile, just across the line, the People's Republic of California just paid $2.2 billion for the Ivanpah solar thermal plant, which will generate 0.4 GW compared to our 6 GW, and at much higher operating cost. Ivanpah's cost was also grossly inflated by a slightly less maniacal version of the same useless lawsuits and regulatory delays that plague nuclear construction. The Luddite strategy for any type of energy construction is delay, delay,. delay. As bonding interest steadily ticks upward with time, you can eventually make any project cost too much.

      The problem isn't subsidies. we need to fix our legal system to strip Luddies of the legal standing to interfere with vital infrastructure.

    25. Re:About time by Anonymous Coward · · Score: 0

      Let's just make sure that the pollution happens in areas where the business-friendly people live!

    26. Re:About time by Mr+D+from+63 · · Score: 1

      The Germans have committed 100 Billion euro in subsidies to spur solar. For that, they have enough solar PV to generate in a year what 2 or three nuclear units can. For $100 Billion in subsidy they could have built dozens of nuclear units, generating many times that amount of electricity. Now they are stuck with the small payback for the huge investment.

    27. Re:About time by Anonymous Coward · · Score: 0

      The Luddite strategy for any type of energy construction ...

      Providence provided humanity with nuclear energy in the 1950s, just about the correct time to avoid any serious effect of carbonizing our atmosphere. Global warming is the reward for our superstitious fear of the atom. Between climate change deniers and anti-nuclear activists it's difficult to distinguish culpability.

    28. Re:About time by Anonymous Coward · · Score: 0

      In what way does Fukushima have anything to do with normal operation?,/p>

      Well a worst case scenario, of the Fukushima type, must be considered when assessing the risks of normal operation. Now we know, when things really go wrong, the kind of widespread mortality we are looking at.

    29. Re:About time by sjames · · Score: 1

      Perhaps, but it has nothing to do with permitted radiation. Fukushima well exceeded it's permitted limits. Setting them lower wouldn't have prevented anything. Setting them higher wouldn't have made a tsunami hit it sooner.

    30. Re:About time by Anonymous Coward · · Score: 0

      The people running it were normal?

    31. Re:About time by Maury+Markowitz · · Score: 1

      > China is aiming to build enough nuclear capacity to beat the USA

      Not any more, all plans have been dramatically scaled back. By the time the next round starts there is the significant possibility that their wind and PV installs will render it moot. Those are currently going in faster than even the peak of the predicted nuclear commissioning, which would have been around 2025.

      Fukushima had something to do with this, but the Sichuan Earthquake was the real problem. You don't want construction companies who can't be bothered to bend over the tops of rebars building your reactors, and you don't want corrupt local politicians in charge of inspecting their work. If there is one major advantage that the Chinese have, it's a level of introspection unseen in the fUSSR.

    32. Re:About time by Maury+Markowitz · · Score: 1

      > All energy sources are subsidized to some extent

      Indeed.

      > If all subsidies were removed, gas would completely dominate, followed by coal and nuclear

      Maybe in the 1970s, but this is certainly not true today. Wind is very competitive with NG, nuclear isn't remotely close.

      NG is only competitive because of a grab-bag of direct and indirect incentives on the exploration and development side. These include numerous reductions in oversight to lower the time delay in getting drills into the ground. I'm all in favour of this, but the point remains that if these changes had not been made, NG would still be more expensive than coal.

      As to nuclear, it's not even close. The cost of nuclear power was only ever competitive due to *MASSIVE* development funds and spin-offs from the nuclear bomb industry. As the thorium crowd is fond of pointing out, the only reason we use uranium is that its what the bombs were using (as a feedstock, if nothing else). That Chernobyl was an adapted bomb-supply device illustrates this point.

      But more to the point, the cost of nuclear has been rising almost continually since the 1960s. It's currently about twice what it used to be. Most of this is due to increased safety requirements, things like remote operating rooms, redundant control wiring, fireproofing, etc. The industry has been trying to fight back by introducing newer designs like the AP1000, but these have seen limited results to date.

      To put numbers to the problem, nuclear power currently provides about 53% of Ontario's power, but the reactors are aging out. Plans to add a replacement came in so expensive that they simply gave up (CAPEX was *at least* 8.25 $/Wp). Instead, they are now planning a massive refurb of the Darlington plants. They haven't even started, and they're already $300 million over budget. Ignoring that, the original estimates put the refurb at about 8.3 cents/kWh. That's for a plant where the CAPEX is already paid down!

      A MIT report from 2009 calculated the rise in construction costs at *15% per year* during the 2000s, a general figure from industry as a whole. As a result, the power industry has turned to smaller systems that are less capital intensive. The "credit crunch" didn't help either. The same report still said nuclear would be cheaper, but only because they applied a CO2 disposal cost that made it so. Even then, they assumed a 2007 CAPEX at $4, the overnight rate, while the industry is seeing real rates at $8 and over (that florida plant was $11/Wp). At these rates, nuclear is on the order of 6 to 8 cents/kWh *just for the mortgage payments*.

      For comparison, conventional hydro is 1 to 3 cents, NG plants about 5 to 6, modern coal plants about the same, and wind about the same too. These numbers are typical, which is why you're seeing nuclear plants being abandoned all across north america, they simply do not compete with modern systems.

      As to wind and PV, again, you're just wrong. Wind systems are currently going in for about $1/Wp, which is about the same as an NG turbine. For comparison, even coal plants cost more, about $2/Wp. As a result, wind power is between 5.5 and 6.5 cents/kWh in the US, making it the second fastest growing power source. As to PV, CAPEX is currently 1.80 $/Wp in the US for industrial systems, which makes the power about 10 cents. That's more expensive than base load from the other sources mentioned here, but fairly competitive with peaker systems. More importantly, PV efficiently scales from about 200W to 2GW, something no other power source we have is able to do (hyrdo comes close, but small hydro is even less reliable than PV).

      And these last two are in spite of receiving pennies on the dollar in terms of support that the other sources get. Yes, there are incentives, but in the grand scheme of things, they're *tiny*. Yet they are already outcompeting most other power sources, which is why they are the fastest growing power sources world wide.

      Nuclear is dead. You can tilt at that windmill all your want, but

    33. Re:About time by Maury+Markowitz · · Score: 2

      > Solar doesn't come close when it comes to total cost of producing MWh on an annual basis

      True, but certainly not as true as it was even a year ago:

      http://www.epelectric.com/files/html/Macho_Springs/Macho_Springs_Notice_of_Proceeding_and_Hearing_12-00386-UT__2_.pdf

      20 yr PPA at 5.79 cents/kWh (see para 2). Very competitive with wind and NG.

    34. Re:About time by Mr+D+from+63 · · Score: 1

      You mix subsidized prices, market rates and costs in your analysis to the point where it doesn't make sense, not uncommon when trying to make an argument for solar. Stick to cost and you'll see the stark difference. The key thing is that 1Kw of nuclear capacity generates on average about 5 times the electricity in a year than 1Kw of solar PV. And, the cost of backup up is much lower, as you only need 1KW reserve for about 90 Kw of nuclear, while you need almost the full 90Kw of reserve for every 90 Kw of PV. Solar fanboys conveniently ignore that cost, and its a pretty big one.

      but even without consideration of that huge additional cost:

      The Germans have committed 100 Billion euro in subsidies to spur solar. For that, they have enough solar PV to generate in a year what 2 or three nuclear units can. For $100 Billion in subsidy they could have built dozens of nuclear units, generating many times that amount of electricity. Now they are stuck with the small payback for the huge investment.

    35. Re:About time by Mr+D+from+63 · · Score: 1

      Are you making some point about cost? retail price? Market pricing? What? An individual contract in the context of a 50% subsidized source with added production credits means nothing in terms of actual cost.

    36. Re:About time by Maury+Markowitz · · Score: 1

      > An individual contract in the context of a 50% subsidized source with added production
      > credits means nothing in terms of actual cost.

      Indeed, that's the entire point of the thread.

    37. Re:About time by Maury+Markowitz · · Score: 1

      > You mix subsidized prices, market rates and costs in your analysis to the point where it doesn't make sense

      Ummm, you are aware, of course, that the former is largely a function of the later? As to the market rates, all $/kWh figures I gave were *unsubsidized LCoE*. I don't know how you concluded otherwise, there was certainly nothing in the post that suggested that. Actually my numbers are out of date too, the latest figures are even more in the same direction:

      http://gallery.mailchimp.com/ce17780900c3d223633ecfa59/files/Lazard_Levelized_Cost_of_Energy_v7.0.1.pdf

      Go to page 2, the one titled "Unsubsidized Levelized Cost of Energy Comparison".

      > The key thing is that 1Kw of nuclear capacity generates on average about 5 times the electricity in a year than 1Kw of solar PV

      And the other key thing is that PV CAPEX costs more than 5 times less than nuclear. And in both cases, LCoE is pretty much directly a function of CAPEX because fuel costs are either low (nuclear) or zero (PV).

      Levy County was tagged at $11/Wp. PV in the US, according to page 8 of that report, is about $1.75. 5 times $1.75 is $8.75.

      $8.75 And, the cost of backup

      Every study that has ever been prepared on the topic has conclusively demonstrated this is a non-argument until these sources account for a LOT of the energy mix. They don't, currently, and won't hit the levels needed for a long time. Certainly the recent production figures in Germany, which went off without a hitch, demonstrate this fairly conclusively. All the numbers I've seen suggest we don't have to do anything other than upgrade software (which IBM sells, among others) until we're well into the 30 to 35% range, and right now we're around 15%, including hydro which offsets the other numbers.

    38. Re:About time by Anonymous Coward · · Score: 0

      Forty years of Marxism reduced their people to equality - equally poor. The Communist Party hijacked the people's revolution onto the capitalist road and it's been all up since then.

      Yes, before communism the Chinese people lived in a wonderland of flying unicorns pooping glitter and farting rainbows.

      Remember, kids, we have always been at war with communism. Don't need to look any deeper than that.

    39. Re:About time by Agent0013 · · Score: 1

      But you have to up that $100 Billion by 10 times or more to account for the clean-up of the waste. Not to mention the cost of a mishap. Nobody ever puts up the money to clean up the waste after it is used in the plant. They just figure it will evaporate or something.

      --

      -- ssoorrrryy,, dduupplleexx sswwiittcchh oonn.. -Quote found on actual fortune cookie.
    40. Re:About time by Mr+D+from+63 · · Score: 1

      Not even close. The waste is funded during the life of the plant. Today's plant designs are for a minimum 60 years of operation, but solar PV life ranges from 15 to 25 years, required all that capital to spent again to replace. Of course, nuclear plants will have lifetime costs as well, but not 3 x cap in present day dollars.

    41. Re:About time by macpacheco · · Score: 1

      The parent post was totally serious.
      The largest effect from Three Mile Island, Fukushima and Chernobyl wasn't actual deaths/cancers, it was radiophobia.
      Because we can't see, smell, hear or otherwise feel radiation, and because there is an extremely smart anti nuclear campaign, we all get radiophobia, until we are properly educated about the subject.
      Both Three Mile Island and Fukushima killed zero people and caused zero cancer cases.
      Chernobyl was easily avoidable with safety practices already in place in North America and Western Europe decades earlier, should those safety practices have been followed by the USSR, Chernobyl would have been another three mile island.
      If anything, those three accidents have actually proved radiation safety standards are two orders of magnitude too strict.
      If the premisses from those safety standards adopted by the NRC, EPA were true, even three mile island would have caused dozens to hundreds of cancers and many deaths. And Chernobyl would have killed around a million people (so far less than 200 deaths were caused).
      The data used to setup those standards have always been incomplete, it used only data from Hiroshima and Nagazaki on one extreme and was extrapolated linearly. The reality is at radiation levels 1% those right after the nuclear detonations cancer incidence drops much more than linearly.
      Please educate yourself about radiation and nuclear power safety.
      The reality is that nuclear power is the safest electricity source in the world, even safer than solar and wind. Please go lookup actual hard data instead of using your gut feeling (it must be wrong). The data shows otherwise.
      The reason nuclear is safe its an extremely dense energy source, nuclear power plants require small operational staff. So actually keeping the highest safety levels is possible. While solar/wind requires more than an order of magnitude more people.

    42. Re:About time by macpacheco · · Score: 1

      People properly educated about nuclear safety are actually pro nuclear. Nuclear IS safe.
      If we approached airline safety like nuclear, there would be no airlines, they would all be grounded forever.
      Like nuclear, flying with the airlines is the safest form of transportation.
      Nuclear is similar, the safest energy source.
      I'm a private pilot combined with my in depth computer and physics/engineering general skills allows me to understand how a modern airliner works to a deep level.
      I have also dedicated a few hundred hours studying light water / boilling water reactors recently, the types of safety systems (complexity, failure modes) is extremely similar in both cases.
      The big difference is its easy to create a nuclear bogeyman, since radiation is invisible, while airline accidents are well publicised.
        This site sums the thought extremely well:
            http://nuclearradiophobia.blog...

    43. Re:About time by macpacheco · · Score: 1

      Big lie.
      Initial investment to startup a nuclear power plant is high. But once up and running, nuclear is cheaper than coal (fuel, maintenance, operational costs).
      Over the 60-80 years a new nuclear power plant is expected to operate the initial high nuclear costs are fully paid off.
      That's one of the many distorted facts that is said about nuclear.
      Don't waste your time comparing nuclear to solar / wind.
      Nuclear is baseload energy.
      Solar / Wind are intermittent energy sources, whose costs ignore the grid upgrade costs and other indirect costs required to go even 20% solar electricity for North America.
      Hawaii is already showing the results of extreme solar penetration. Germany renewables plan has to sustain is headway at the 25% electricity from renewables mark (including solar+wind+hydro+biomass in the mix). Germany might make it to 30 or 35% in the next few years, but the sun doesn't shine at night, too little sunlight in the winter, wind doesn't blow uniformly every day problem costs way more than nuclear to be solved.
      The real solution is proper nuclear education.
      The real solution is to reverse the radical environmentalism brainwashing conducted at large scale in many countries.
      Its interesting that brainwashing creates a deep hatred for nuclear, but fails to vilify the real bad guy: COAL. COAL kills 200 thousand people yearly worldwide. If all nuclear power plants worldwide would have instead been coal power plants over 2 million people would have died from COAL pollution effects.
      COAL is the bad guy. Nuclear is much safer even than natural gas.

    44. Re:About time by macpacheco · · Score: 1

      Solar panels alone might look cheaper than nuclear.
      When you take the full cost of migrating 100% of existing nuclear+coal electricity production in Germany to solar+wind. Nuclear is a cakewalk.
      The math is quite simple.
      Germany's peak electricity load is 65GW. Of that 15GW were renewables since the start of energiewende.
      So 40GW of new nuclear would migrate 100% of natural gas/coal/old nuclear generation.
      That's 31 full size nuclear power plants (1.33GWe each).
      Even at ultra high 10 billion euro per full size nuclear power plant that's 310 billion euro. New nuclear is being built at half that cost in China / India / South Korea.
      It has been proven that energiewende is a trillion euro plan. Without any assurances it will work. As a matter of fact, the challenges of storing solar/wind intermittent production are known to be impossible to solve. Solar in Germany produces 90% less in the winter than in the summer. Wind might blow more strongly in the night / winter in general, but there are statistical exceptions. All it takes is a few low wind winter days for the grid to collapse using only renewables.
      Do the math. The math doesn't add up.
      Solar in California / Hawaii / Florida / Texas works much better than Germany (sun shines much more in the winter), but still a 100% renewable model doesn't add up. The current feed in tariff system works very well until the grid is 20% solar or 20% wind. At that point the intermittency issues fuck everything up.
      Hawaii is already showing that, and Hawaii is a best case scenario (extremely mild winters insolation wise). Hawaii could go 100% solar with just 6 hours worth of peak electricity demand worth of energy storage. Still the math doesn't add up. Even with Hawaii having one of the highest USA electricity costs along with Alaska.
      Stop. Think. Get out of your radical environmentalist bubble.
      If you aren't an engineer, physicist or otherwise STEM college graduate it might be beyond your numbers skills to understand what I'm talking about.

    45. Re:About time by macpacheco · · Score: 1

      What waste, you mean nuclear waste ?
      Nuclear remediation procedures have been shown to be 90% of what is really necessary.
      If we take current nuclear regulations seriously, we must stop living in Denver-CO, Salt Lake City-UT, or any sky resort above 2000 meters.
      Nuclear regulations have been designed without comprehensive data points, using just the nuke detonations in Japan as sole data points.
      Three Mile Island, Chernobyl, Fukushima have actually proven those nuclear regulations are overblown.
      If those regulations were at a necessary level, Chernobyl would have killed a million people. Instead less than 200 people died.
      TMI and Fukushima killed zero people, caused zero cancers.
      If Linear No Threshold model were right, both TMI and Fukushima would have caused enough cancer cases to be statistically easy to find.
      The reality is the problem is only on people's mind.
      Please read this:
          http://nuclearradiophobia.blog...

    46. Re:About time by macpacheco · · Score: 1

      Actually the nuclear waste from water cooled/solid fuel reactors is fuel for IFR reactors.
      If instead of giving new nuclear a hard time, we embraced IFR reactors, existing spent nuclear fuel + depleted uranium would be enough to power the whole world for over 100 years without mining a single ton of Uranium / Thorium from the ground.
      While North America / Western Europe is wasting its time on solar, Russia already has many operational IFR reactors like the BN-600 and BN-800.
      My main problem with the BN reactors is I don't trust Mr. Putin. GE has the S-PRISM design. But NRC regulations are so complex and expensive, it's uneconomical to just do it.

    47. Re:About time by macpacheco · · Score: 1

      Competitive when the sun is shining. With solar production having priority over everything else except for wind.
      When you understand the whole regulatory model, you see the math isn't was it seems.
      It's profoundly unfair to compare baseload NG with intermittent solar. Its comparing apples to oranges.

  3. headed in the wrong direction by swschrad · · Score: 1, Insightful

    it is the common view of medical and general science during the century-odd that we have discovered and been able to document radiation and its effects... that no amount is "generally recognized as safe" and standards need to be tightened. that radiation damage is cumulative. and that normal diagnostic x-rays and so forth approach the line of cellular damage over a lifetime.

    so a comprehensive review based on science would move the decimal point to the left, at least to .025 mS/year, and perhaps .0025 mS.

    certainly, radon exposure in homes has been trending that way, much to the chagrin of some homeowners who would also pass off arcwelder power panels because they haven't had a fire yet.

    --
    if this is supposed to be a new economy, how come they still want my old fashioned money?
    1. Re:headed in the wrong direction by khallow · · Score: 4, Insightful

      it is the common view of medical and general science during the century-odd that we have discovered and been able to document radiation and its effects... that no amount is "generally recognized as safe" and standards need to be tightened.

      What makes your "common view" any more valid than any other "common view"? Especially given that "generally recognized as safe" is a completely non-scientific quantity. In the end, you need evidence to back up such assertions not alleged consensus of vague groups of people.

      so a comprehensive review based on science would move the decimal point to the left, at least to .025 mS/year, and perhaps .0025 mS.

      Background levels are around 1 mS/year. So why advocate thresholds more than two orders of magnitude lower than what people normally get in a year? I just don't think science has much to do with your choice of thresholds.

    2. Re:headed in the wrong direction by Gothmolly · · Score: 2

      When does it, versus the notion of "protecting the children" ? If you think that the government and associated puppet regulators actually have anyone's good as their goal, think again.

      --
      I want to delete my account but Slashdot doesn't allow it.
    3. Re:headed in the wrong direction by khallow · · Score: 1

      If you think that the government and associated puppet regulators actually have anyone's good as their goal, think again.

      "IF". I doubt the poster I was replying to qualifies as a government or a puppet regulator.

    4. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      so a comprehensive review based on science would move the decimal point to the left, at least to .025 mS/year, and perhaps .0025 mS.

      Have you actually made a comprehensive review of the science? It is a minefield and a lot of arguing still going on over the linear no threshold versus a threshold model, with a lot of data pointing either way. You wouldn't even have to cherry pick that much to find literature reviews already out there arguing for regulations to move the decimal in either direction. The result is a lot of regulations in countries currently are kind of arbitrary, not based on science, while even some large science organizations (not industry ones) are taking opposing sides on which direction science says to do.

    5. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      Background levels are around 1 mS/year.

      Speak for yourself, background levels where I live are at 3 mS/year.

    6. Re:headed in the wrong direction by khallow · · Score: 1

      I live at Yellowstone National Park above 7,000 feet. That altitude plus enhanced radon exposure from the volcanism probably means I'm getting a bit more than 1 mS/year too.

    7. Re:headed in the wrong direction by Anonymous Coward · · Score: 1

      it is the common view of medical and general science during the century-odd that we have discovered and been able to document radiation and its effects... that no amount is "generally recognized as safe" and standards need to be tightened. that radiation damage is cumulative. and that normal diagnostic x-rays and so forth approach the line of cellular damage over a lifetime.

      The assumption of cumulative damage is for dosages above 100mSv/year. Below that dose no increased probability for cancer has been found.
      The recommendation at 1% of documented harmful dosage is pretty arbitrary and is set differently in countries where 1mSv/year is impossible to achieve due to naturally occurring background radiation. (Pretty pointless to have a 1mSv/year limit when you have had a population of millions living in twice that for a couple of millennium without any measurable problems.)

    8. Re:headed in the wrong direction by Applehu+Akbar · · Score: 2, Informative

      Yours was actually an early, post-WW II fear about radiation effects, with the modern perception trending the other way, as TFA indicates.

      If radiation really were 'cumulative' with no threshold, the constant drizzle of background radiation we all live in would have terminated human existence long before this argument even started.

    9. Re:headed in the wrong direction by gewalker · · Score: 1

      According to scientist, the common view is that the linear no-threshold model is actually the flawed viewpoint. See this article for a pro-radiation view that is not commonly reported. Although most people will scoff, there is actual evidence that a little ionizing radiation is good for you.

      Yes, I would participate in the study that installs a radioactive source in your house (at reasonably low levels) because I believe the data that I have been able to find in the past.

    10. Re:headed in the wrong direction by Uecker · · Score: 3, Informative

      I have no opinion about the threshold, but there are two things to correct in your post:

      it is the common view of medical and general science during the century-odd that we have discovered and been able to document radiation and its effects... that no amount is "generally recognized as safe" and standards need to be tightened.

      What makes your "common view" any more valid than any other "common view"? Especially given that "generally recognized as safe" is a completely non-scientific quantity. In the end, you need evidence to back up such assertions not alleged consensus of vague groups of people.

      He is absolutely right though. It is the common view of the scientific community that no amount of ionizing radiation is safe. This is also the basis of all radiation protection regulation everywhere (ALARA principle). The reason is simple: Ionizing radiation creates DNA damage with a small probability which then causes cancer with a small probability (which has then a certain probability of killing you). So even a single particle has a very small probability of causing cancer. There is a minority of people that believe that there are other effects (e.g. radiation at low doses activates the immune system) which dominate at low doses, but this is a minority view point and the data we have does not support this. From atomic bomb survivors see a linear correspondence between dose and risk down to about 50 mSv. For example, from this it was predictated that CT scans cause cancer with a very low probability and this has recently been confirmed.

      so a comprehensive review based on science would move the decimal point to the left, at least to .025 mS/year, and perhaps .0025 mS.

      Background levels are around 1 mS/year. So why advocate thresholds more than two orders of magnitude lower than what people normally get in a year? I just don't think science has much to do with your choice of thresholds.

      This is a fallacy. The threshold should be set on the estimated benefits of a higher threshold vs the estimated harm from the additional radiation. The background radiation has nothing to with it.

    11. Re:headed in the wrong direction by Mr+D+from+63 · · Score: 4, Informative

      so a comprehensive review based on science would move the decimal point to the left, at least to .025 mS/year, and perhaps .0025 mS.

      Quite the opposite actually. A comprehensive review based on your assumptions might, but based on science they would use real world data with real people. Even with the decades of medical data we have today, exposure from numerous CT Scans, regional radon exposures, and other sources, there is still no evidence in the real population that there are any negative effects from low dose radiation, and it is increasingly clear that the existing safety limits are ultra conservative. Those limits are based on decades old war era studies that observed effects of huge radiation doses which dropped off at lower rates to non-observable percentages. In the interest of being conservatively safe in a world where nuclear fear was at an all time high, they simply drew an almost linear correlation from the high does cases down to zero. But it is quite clear that once you get down into ranges even several times higher than safety limits, no actual increase in cancers or similar are found.

      The problem is the old issue of proving the negative combined with a societal mus-perception of radiation exposure risk. There is little incentive in society to improve on the outdated basis we are using.

    12. Re:headed in the wrong direction by Chas · · Score: 1

      Sorry, but doing completely without ionizing radiation is a patent impossibility on this planet.

      The view that "there is no safe level" is idiotic in light of this. Obviously there ARE safe levels. Or we'd have people in certain areas of the world keeling over from "massive" radiation exposure.

      Granted, chances of funding to determine safe levels via human testing are completely non-existent (for good reasons), but there are areas all over the world sporting inordinately high levels of background radiation. Yet you don't see people keeling over of radiation-related causes.

      And, I was waiting for you to bring up bombs. Want to put a pall over discussion of nuclear POWER? Simply mention an atom bomb.

      Realistically, there should be TWO values for radiation exposure.

      1: Single-instance exposure. How much you can SAFELY be exposed to in a single pass (for things like chest X-Rays, nuclear cleanup work, and the like.)
      2: Exposure over-time.

      --


      Chas - The one, the only.
      THANK GOD!!!
    13. Re:headed in the wrong direction by Mr+D+from+63 · · Score: 2

      For example, from this it was predictated that CT scans cause cancer with a very low probability and this has recently been confirmed.

      No, this is false. There are estimates of case probabilities based on the same old data that was used to determine safety limits, but although there are continued efforts to find a statistical increase in the real world, none has been observed despite a the huge number of CT scans that have been performed.

    14. Re:headed in the wrong direction by Uecker · · Score: 2, Informative

      It is the common view of the scientific community that no amount of ionizing radiation is safe.

      That is incorrect. It is one of several common views. Argument from consensus is not scientific, especially when the consensus doesn't actually exist.

      Here is a relative new review: http://dx.doi.org/10.1259/bjr/...

      This is a fallacy. The threshold should be set on the estimated benefits of a higher threshold vs the estimated harm from the additional radiation. The background radiation has nothing to with it.

      I agree. But a high natural background radiation indicates that the estimated harm is likely very overstated.

      No, you didn't get it. I will try with a car analogy: There are about 30000 fatal accidents with motor cycles per year in the US. This does not mean that the harm (16 deaths total or so) from GM's ignition key issue was overstated. The harm was huge relative to the minor cost savings. The other deaths are simply irrelevant to this consideration.

    15. Re:headed in the wrong direction by linearz69 · · Score: 1

      Background levels are around 1 mS/year. So why advocate thresholds more than two orders of magnitude lower than what people normally get in a year? I just don't think science has much to do with your choice of thresholds.

      Advocating a threshold based on background radiation is just as arbitrary. Nuclear disasters and atmospheric tests just raise the background in some places, at some times, beyond "safe" levels.

    16. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      Obviously this article is an EPA generated troll. Assorted laws/regulations require them to update values, but since the science would force updates in the opposite direction as their ideology and masters in Moscow want, they are pre-releasing some troll bait to generate some activity among their zombie legions. All in the hopes of generating enough feigned outrage to delay the updates and stymie any progress toward the truth.

    17. Re:headed in the wrong direction by Uecker · · Score: 2

      Pearce et al., Radiation exposure from CT scans in childhood and subsequent risk of leukaemia and brain tumours: a retrospective cohort study, The Lancet 2012;380:499-505

      First sentence of the discussion section: "In this retrospective cohort study, we show significant associations between the estimated radiation doses provided by CT scans to red bone marrow and brain and subsequent incidence of leukaemia and brain tumours."

    18. Re:headed in the wrong direction by Uecker · · Score: 3, Informative

      The other deaths are simply irrelevant to this consideration.

      No, they indicate that society accepts a certain level of harm from automobiles. The "minor cost savings" is capped from above before it is just not worth doing.

      The overall harm society accepts for mobility is unrelated to the question whether a couple of lifes are worth the cost of an improved ignitation key.

    19. Re:headed in the wrong direction by Uecker · · Score: 1

      You are equating "very low risk" with "safe". This is OK in personal life but not if you talking about a large number of affected people. If something causes an additional very low statisitical risk of death to a high enough number of people, then some of them will die because of this. And this needs to be considered. That there are other risks which are higher is irrelevant and no justification to simply ignore this.

      And yes, nuclear proliferation is also a concern, although I do not really understand why you brought that up here.

    20. Re:headed in the wrong direction by Chas · · Score: 0

      I'm not equating a damn thing.

      I'm telling you, flat out, that there's no such THING as "safe". PERIOD.

      Once you get over that little fantasy, then you can start having a meaningful dialog.

      And, nuclear proliferation is only a concern for certain types of reactors.

      With something like an LFTR reactor, your nuclear proliferation risk may not be zero, but it's a sum only slightly above zero. Unlike current, decades-old dry fuel reactors.

      --


      Chas - The one, the only.
      THANK GOD!!!
    21. Re:headed in the wrong direction by Chas · · Score: 1

      Additionally, if added radiation puts a hundredth of a percent of the population at greater risk, but stops or significantly reduces global warming?

      GREAT! Even if it means I'm one of that "unlucky" percentage.

      Sure, 800K people MAY die sooner. MAYBE.

      But having this planet melt down will likely kill us ALL.

      Possible 800K vs DEFINITE 8 Billion?

      --


      Chas - The one, the only.
      THANK GOD!!!
    22. Re:headed in the wrong direction by khallow · · Score: 1

      You are equating "very low risk" with "safe".

      Something can be high risk and still be rationally considered safe.

      This is OK in personal life but not if you talking about a large number of affected people.

      Sure, it can. We do it all the time, such as in this discussion about radiation exposure.

      If something causes an additional very low statisitical risk of death to a high enough number of people, then some of them will die because of this.

      Unless, of course, that doesn't actually happen to be the case.

      And this needs to be considered.

      Not if the cost is well below background noise.

    23. Re:headed in the wrong direction by Uecker · · Score: 3, Informative

      I see your point, but I do not agree to the idea that society, by tolerating fatalities from traffic accidents, has accepted a universal trade-off between risk of death and cost. (There are many problems with this idea: how would you quantify the total value of mobility? Also society is not one single entity but consits of many different people with different interests. Cost and risks are also not equally distributed, e.g.. why should society trade a cost to GM with a risk of death to others?). But this is also irrelevant to the original question: The natural background radiation is nothing society has voluntarily accepted.

    24. Re:headed in the wrong direction by Uecker · · Score: 1

      If something causes an additional very low statisitical risk of death to a high enough number of people, then some of them will die because of this.

      Unless, of course, that doesn't actually happen to be the case.

      In other replies in this thread I pointed out the basic argument why most scientists believe that even very low doses of radiation cause a small risk of cancer and also gave a link to recent review which summarized the discussion and a study which shows an effect for patients which had CT scans. Giving you the right pointers to learn the facts is all I can do. Discussing this further is a waste of time.

    25. Re:headed in the wrong direction by Uecker · · Score: 1

      Then your argument makes even less sense.

    26. Re:headed in the wrong direction by Uecker · · Score: 1

      The view that "there is no safe level" is idiotic in light of this. Obviously there ARE safe levels.

      I'm telling you, flat out, that there's no such THING as "safe". PERIOD.

      No comment.

    27. Re:headed in the wrong direction by khallow · · Score: 1

      In other replies in this thread I pointed out the basic argument why most scientists believe that even very low doses of radiation cause a small risk of cancer and also gave a link to recent review which summarized the discussion and a study which shows an effect for patients which had CT scans. Giving you the right pointers to learn the facts is all I can do. Discussing this further is a waste of time.

      Again, where's the evidence to support your claim? The study doesn't show what you think it shows. I get tired of people who confuse opinion and confirmation bias with evidence.

    28. Re:headed in the wrong direction by khallow · · Score: 1

      People accept that they aren't going to live to 1000 years. You can and do accept all sorts of things that you can't change or even for that matter conceive of changing.

    29. Re:headed in the wrong direction by Firethorn · · Score: 1

      This is a fallacy. The threshold should be set on the estimated benefits of a higher threshold vs the estimated harm from the additional radiation. The background radiation has nothing to with it.

      Bingo. Consider that the likely alternatives if you kill nuclear power are coal and natural gas. Realistically speaking you'd have to consider the harm from coal pollution for every kWh burned, which I'd easily say is going to be more. Natural Gas is far cleaner, but still has some pollution issues even without considering global warming. With this in mind, loosening nuclear power restrictions can actually save lives if you use it as an opportunity to prevent more coal or NG plants.

      --
      I don't read AC A human right
    30. Re:headed in the wrong direction by Firethorn · · Score: 3, Insightful

      (Pretty pointless to have a 1mSv/year limit when you have had a population of millions living in twice that for a couple of millennium without any measurable problems.)

      Indeed, this is even measurable. 1mSv/year is average, if variations caused significant differences in cancer rates you'd expect it to readily show in in areas like Colorado vs Mississippi.

      --
      I don't read AC A human right
    31. Re:headed in the wrong direction by Mr+D+from+63 · · Score: 1

      That study has results within the margin of error. Multiple studies are needed to corroborate results in these cases. Other studies don't show the same results. A real challenge in getting the needed data is the fact that most people who are getting multiple CT scans, and therefore higher dose, are already in a higher risk group.

      http://hps.org/documents/risk_...

      "There is substantial and convincing scientific evidence for health risks following high dose exposures. However, below 50 - 100 mSv (which includes occupational and environmental exposures), risks of health effects are either too small to be observed or are nonexistent."

    32. Re:headed in the wrong direction by gdshaw · · Score: 2

      Background levels are around 1 mS/year. So why advocate thresholds more than two orders of magnitude lower than what people normally get in a year? I just don't think science has much to do with your choice of thresholds.

      This is a fallacy. The threshold should be set on the estimated benefits of a higher threshold vs the estimated harm from the additional radiation. The background radiation has nothing to with it.

      It would be a fallacy if background levels were fixed and unavoidable. They're not. So long as people are allowed to and choose to travel by air, and live in areas with above-average background radiation, it is reasonable to argue that nuclear power should be held to a similar standard.

      (Granted that medical imaging is different because you would normally be doing it for a good medical reason.)

    33. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      There's no longer a scientific consensus on LNT. The accusations made by anti-LNT people are than those who originally advocated LNT committed scientific fraud because they saw LNT as a means to stop atom bomb 'tests'. But I think the French gave up on anything approaching LNT 8 years ago. The EPA are stuck here. Their current position is anti-science and supports scientific fraud. Any reform is almost politically impossible because environmentalists are fanatically anti-nuclear and they won't allow it. I await the fireworks from the other side of the Atlantic. I wish we were doing the same.

    34. Re:headed in the wrong direction by drinkypoo · · Score: 1

      Background levels are around 1 mS/year. So why advocate thresholds more than two orders of magnitude lower than what people normally get in a year?

      There is no safe level for radiation, there are only levels less statistically likely to cause you a problem. Cancer is already the practical upper bound on our lifespans, not for all individuals but for many. They occur already, without increasing radiation exposure. Presumably, some percentage of cancers occurring "naturally" are due to this background radiation. Some 20% of the radiation the median person will be exposed to in their lifetime is man-made. How many cancer cases are caused by that radiation? Further, what of the cost to the body of fighting off the cancers which are never even detected?

      In essence, you are using the same argument erroneously applied to carbon dioxide release by denialists. They claim that because more CO2 is released from "natural" sources than from manmade ones (ignoring that we exceed massive sources like volcanism by orders of magnitude) that we cannot be having a deleterious effect. But in fact, the proportion of production is irrelevant if it is sufficient to raise the total above an inconvenient level. But in this case, the argument is even less applicable, because there is no level of radiation exposure which is considered desirable. Adding more radiation increases risk, however slightly. Where it is unnecessary, it should be avoided.

      All of this is orthogonal to the issue of what kind of power we should be using. Obviously, coal power is undesirable from multiple standpoints, not least the issue of nuclear waste being distributed across the landscape. I am not anti-nuclear, but I am against more nuclear plants being implemented in the USA before we've even dealt with the waste we have lying around in conditions similar to those found at Fukushima Daiichi, and on top of or next to active fault lines, let alone "dormant" ones.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    35. Re:headed in the wrong direction by mdsolar · · Score: 2

      Bogus. We are adapted to background radiation but it still causes cancers. http://en.wikipedia.org/wiki/R...

    36. Re:headed in the wrong direction by Chas · · Score: 1

      There's always going to be some minimal risk.

      Anyone who tells you otherwise is lying to you (see "SELLING SOMETHING").

      There has to be a minimum acceptable level of risk. But there's STILL a risk.

      If you think this makes you "safe" you're nuts.

      But you have to weigh it against the other risks.

      You want to keep dumping tons of nuclear waste into the open environment? Want to kill off most of the population of this planet by disrupting the environment? Keep burning fossil fuels.

      For the record, I don't think the current generation of nuclear reactors and their solid fuel systems are any better.

      Honestly, the LFTR design looks like the best and safest bet for clean, essentially unlimited energy for our society without the environmental drawbacks.

      --


      Chas - The one, the only.
      THANK GOD!!!
    37. Re:headed in the wrong direction by fnj · · Score: 4, Interesting

      So long as people ... live in areas with above-average background radiation

      Which is to say, forever. By definition precisely one half of the population live with background radiation above the median level. That can be stated without any knowledge whatsoever of what that median level is or what the distribution is. It is a truism. I'm not aware of the precise statisic for percentage living with above average background radiation, but for example we do know that the natural background radiation in Finland is about three times that in the UK.

    38. Re:headed in the wrong direction by MrKaos · · Score: 1

      it is the common view of medical and general science during the century-odd that we have discovered and been able to document radiation and its effects... that no amount is "generally recognized as safe" and standards need to be tightened.

      In the end, you need evidence to back up such assertions not alleged consensus of vague groups of people.

      Here you go. The story is discussing Tritium and here is some studies that you can go an examine yourself. I've copied the post for you to read.

      These scientific studies are on the effects of tritium on living beings.

      Some of them show that Triated water's effect is biologically mutagenic *because* it's a low energy emitter and it's characteristics makes readily absorbed by surrounding cells. The available evidence from studies conducted journal a list of effects. From those works;

      Tritium can be inhaled, ingested, or absorbed through skin. Eating food containing 3H can be even more damaging than drinking 3H bound in water. Consequently, an estimated radiation dose based only on ingestion of tritiated water may underestimate the health effects if the person has also consumed food contaminated with tritium. (Komatsu)

      Studies indicate that lower doses of tritium can cause more cell death (Dobson, 1976), mutations (Ito) and chromosome damage (Hori) per dose than higher tritium doses. Tritium can impart damage which is two or more times greater per dose than either x-rays or gamma rays.

      (Straume) (Dobson, 1976) There is no evidence of a threshold for damage from 3H exposure; even the smallest amount of tritium can have negative health impacts. (Dobson, 1974) Organically bound tritium (tritium bound in animal or plant tissue) can stay in the body for 10 years or more.

      It's often said "of all the elements in nuclear waste tritium is one of the more harmless ones" and while it's more benign than most other radioactive effluents it's toxicity should not be under-estimated.

      Tritium can cause mutations, tumors and cell death. (Rytomaa) Tritiated water is associated with significantly decreased weight of brain and genital tract organs in mice (Torok) and can cause irreversible loss of female germ cells in both mice and monkeys even at low concentrations. (Dobson, 1979) (Laskey) Tritium from tritiated water can become incorporated into DNA, the molecular basis of heredity for living organisms. DNA is especially sensitive to radiation. (Hori) A cell's exposure to tritium bound in DNA can be even more toxic than its exposure to tritium in water. (Straume)(Carr)

      First, as an isotope of hydrogen (the cell's most ubiquitous element), tritium can be incorporated into essentially all portions of the living machinery; and it is not innocuous -- deaths have occurred in industry from occupational overexposure. R. Lowry Dobson, MD, PhD. (1979)

      References;

      Komatsu, K and Okumura, Y. Radiation Dose to Mouse Liver Cells from Ingestion of Tritiated Food or Water. Health Physics. 58. 5:625-629. 1990.

      Dobson, RL. The Toxicity of Tritium. International Atomic Energy Agency symposium, Vienna: Biological Implications of Radionuclides Released from Nuclear Industries v. 1: 203. 1979.

      Hori, TA and Nakai, S. Unusual Dose-Response of Chromosome Aberrations Induced in Human Lymphocytes by Very Low Dose Exposures to Tritium. Mutation Research. 50: 101-110. 1978.

      Straume, T and Carsten, AL.Tritium Radiobiology and Relative Biological Effectiveness. Health Physics. 65 (6) :657-672; 1993. [This special issue of Health Physics is entirely devoted to Tritium]

      Laskey, JW, et al. Some Effects of Lifetime Parental Exposure to Low Levels of Tritium on the F2 Generation. Radiation Research.56:171-179. 1973.

      Rytomaa,

      --
      My ism, it's full of beliefs.
    39. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      That depends, how high are those Radon radiation doses actually? Other research checking across the world for differences between countries with different background radiation levels to my knowledge, haven't found any differences.

    40. Re:headed in the wrong direction by MrKaos · · Score: 1

      I live at Yellowstone National Park above 7,000 feet. That altitude plus enhanced radon exposure from the volcanism probably means I'm getting a bit more than 1 mS/year too.

      That sounds like a great place to live.

      --
      My ism, it's full of beliefs.
    41. Re:headed in the wrong direction by Applehu+Akbar · · Score: 0

      Your very own source is a citation of lung cancer associated with concentrated doses of radon, in places like unventilated basements. There is no force on the planet more powerful than natural selection: if those superconcentrations of radon occurred as natural background, we would have adapted to that too.

    42. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      I get the impression you're trying to score points here by playing semantic games. I wish you would not do so.

      What Chas was saying was that there is no such concept as absolute safety, and thus there is always a concept of 'acceptable risk', or 'minimum risk'. This is usually synonymous with safety -- most people are willing to recognize that we do not live in an ideal world.

      Back on topic, you seem to be fixated on the idea that any increase in risk is unacceptable. Please explain why.

    43. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      I would bet against 8 billion dieing.

    44. Re:headed in the wrong direction by Uecker · · Score: 1

      I get the impression you're trying to score points here by playing semantic games. I wish you would not do so.

      What Chas was saying was that there is no such concept as absolute safety, and thus there is always a concept of 'acceptable risk', or 'minimum risk'. This is usually synonymous with safety -- most people are willing to recognize that we do not live in an ideal world.

      Back on topic, you seem to be fixated on the idea that any increase in risk is unacceptable. Please explain why.

      No you are misrepresenting what I said. My original point is exactly that there is a risk even from very small doses. I was attacked merely for pointing this out.

      I never said that the risk in unacceptable, but merely stated that the risk has to be weighted against its potential benefits.

    45. Re:headed in the wrong direction by Chas · · Score: 1

      Go ahead. Stick your head in the sand.

      I'm sure that'll save you when the water comes rolling in.

      --


      Chas - The one, the only.
      THANK GOD!!!
    46. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      "..There is a minority of people that believe that there are other effects (e.g. radiation at low doses activates the immune system) which dominate at low doses, but this is a minority view point and the data we have does not support this..."

      Totally wrong. The data we have DO support Hormesis.

    47. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      why most scientists believe

      Except it is not some large, vast majority of scientists with that belief. Several science organizations like the Health Physics Society and French Academy of Sciences have official statements supporting a threshold model. Quite a few organizations (e.g. US NRC, UNSCEAR) will use LNT to be on the safe side while having made statements that they are not sure which model actually holds at low radiation levels because there is evidence either way and a lot of large errors bars or potential for systematic. Others use awkward wording like "evidence is consistent with LNT", which doesn't say LNT is better than a threshold model, only that the evidence doesn't disagree with and could go both ways.

    48. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      By definition precisely one half of the population live with background radiation above the median level.

      That doesn't follow from the definition. If we measure the background radiation at square kilometer poles (say), The median background radiation level has no direct correlation with where people live, as our sample points for determining radiation background are spatially evenly distributed while human populations are not.

      The only way that could follow from the definition would be if instead of using an even spatial distribution of sample points, you instead measured the background radiation at the location of each person; but then your measurements would not fit any reasonable definition of "median background radiation".

      Now, it certainly would be interesting if there is indeed correlation, but that doesn't follow from the definition of background radiation at all.

      -puddingpimp

    49. Re:headed in the wrong direction by Anonymous Coward · · Score: 0

      No such thing as safe... It's all about managing the risk. Trouble is when you do that, the results of your calculations don't fit in with what people want to believe.

    50. Re:headed in the wrong direction by khallow · · Score: 1

      It is. But I guess you have to be there.

    51. Re:headed in the wrong direction by Maury+Markowitz · · Score: 1

      "With something like an LFTR reactor, your nuclear proliferation risk may not be zero, but it's a sum only slightly above zero. Unlike current, decades-old dry fuel reactors."

      Oh geez, this again. As has been pointed out by many, the chemical re-processing used in the lifter is inherently a great way to take reactor grade fuel and upgrade it to weapon grade, all while producing power.

      Will it be it more difficult than doing the same from a conventional U reactor? Yes. Will it make it MUCH more difficult? Not really. In fact, it might not be difficult at all:

      http://www.nature.com/nature/journal/v492/n7427/full/492031a.html

    52. Re:headed in the wrong direction by MrKaos · · Score: 1

      It is. But I guess you have to be there.

      What do you mean? You aren't there?

      --
      My ism, it's full of beliefs.
  4. Re:There is no "safe" amount of ionizing radiation by khallow · · Score: 4, Informative

    I'm sick and tired of the notion that it's OK to pollute, as long as you don't pollute "too much."

    It's pretty straightforward actually. We do valuable things and sometimes they cause pollution, sometimes minor sometimes massive. Instead of being "sick and tired" about the non problem of minute pollution (especially given that there is actual large scale, heavy, life-threatening pollution out there), do a cost/benefits analysis instead.

  5. Hopefully it will make sense this time by Anonymous Coward · · Score: 1

    Cleanup regs require local radiation to be BELOW natural average flux.

    1. Re:Hopefully it will make sense this time by Anonymous Coward · · Score: 0

      Cleanup regs require local radiation to be BELOW natural average flux.

      Could go higher than that. Have the regulations work so that a nuclear plant can give up to as much radiation as a coal plant, and then there will be no problem. Nuclear is cleaner than coal in radiation levels as well as the more obvious carbon footprint.

    2. Re:Hopefully it will make sense this time by Anonymous Coward · · Score: 1

      I once toured a facility that used to be used for a fusion experiment years ago, and since the experiment produced quite a few neutrons, a lot of structural iron near the experiment got slightly activated. Apparently they have to keep it on hand until they can no longer detect radiation from it, despite the fact it is less radioactive than new steel since steel production tends to accumulate trace amounts of Co-60 from the air. I found out about this because you would see a bunch of workers using the old girders as a big bench and table for eating lunch together, even though it was labeled as radioactive waste.

    3. Re:Hopefully it will make sense this time by Anonymous Coward · · Score: 0

      workers using the old girders as a big bench and table for eating lunch together, even though it was labeled as radioactive waste

      Also known as the triumph of rational investigation over FUD. If it's less radioactive than the actual steel picnic tables they buy for you... Common sense isn't common.

  6. Re:There is no "safe" amount of ionizing radiation by Anonymous Coward · · Score: 0

    I'm sick and tired of the notion that it's OK to pollute, as long as you don't pollute "too much."

    Except many things in pollution are already in nature (a lot aren't, obviously though), and there are others that do not accumulate and show no signs of damage at low enough levels. At low enough levels, everything is safe unless you subscribe to homeopathy. That doesn't mean current regulations are close to ideal or right, and there are plenty of reasons to argue for tougher restrictions on what can be found in pollution. But if you want to turn the argument into "no amount is ok," you can end up poisoning the argument for tougher regulations, making it easier to disregard as an extreme position.

  7. It will help save on bills! by Anonymous Coward · · Score: 0

    Cities won't need as many lights once citizens start glowing in the dark.

  8. Fossil fuel plants get to radiate us all they want by blindseer · · Score: 5, Interesting

    While the EPA is thinking about raising limits on how much radioactive material nuclear power plants can release into the environment there are no limits on what coal plants can release. The radioactive material in coal is considered "naturally occurring" since it was dug out of the ground. However thorium is not naturally occurring radioactive material because it is... also dug out of the ground.

    The federal regulations on radioactive materials and pollution have little relation to reason. This nonsense is holding up research in nuclear power. If our "carbon footprint" is an issue then it does not look to me like the government cares a whole lot. They'll toss money at coal powered "electric" cars but not allow a nuclear power plant to get built in four decades.

    What happens to our carbon footprint with all those electric cars powered from coal and natural gas? Oh, we power our cars from wind and solar? That's laughable. No one has yet made a solar panel that can make a profit. Wind power might make a profit but it relies on natural gas turbines to make up for when the wind does not blow. Wind power actually increases carbon output because instead of using efficient boilers they have to use inefficient turbines.

    Getting back to the radiation aspect the burning of natural gas releases radon into the air. Is there any regulations on that? No, because that is "naturally occurring", as if because it's "natural" radiation it does us no harm. What we need to do is hold up fossil fuels to the same standard as nuclear power. We'd switch over to nuclear power on that aspect alone.

    All power sources release radiation into the environment. We're disturbing the earth as we dig for coal, uranium, silicon, or hydro electric basins. Even bio-fuels release radiation because we dig up the earth to plant the crops.

    Nuclear power has the lowest carbon footprint of any power source we know of. Solar and wind cannot even compete because of all the concrete needed to hold up the structures. I'd suspect that if anyone did an honest assessment of the radiation released then it'd probably do better than the rest there as well.

    --
    I am armed because I am free. I am free because I am armed.
  9. Fukushima, Baby by Anonymous Coward · · Score: 0

    No doubt you're going to go over any safe limit anyway, let's add more fuel to that fire, baby, new clear fire, baby.
    It's only frackin fucktonium, baby.

    1. Re:Fukushima, Baby by Applehu+Akbar · · Score: 2, Insightful

      The Fukushima exclusion zone will shrink with time as the site is cleaned up. Meanwhile, the German Greens have replaced nuclear with the world's largest strip mine (http://en.wikipedia.org/wiki/Garzweiler_surface_mine), which is about to be supplemented by a pit twice its size (Tagebau Hambach). Who can't love the smell of smoldering lignite in the morning!

    2. Re:Fukushima, Baby by Mr+D+from+63 · · Score: 2

      Not to mention, most of the exclusion zone is perfectly safe right now, just precautionary and logistics reasons are keeping much of that area in the zone.

    3. Re:Fukushima, Baby by Chas · · Score: 0

      Or we could move over to inherently safer nuclear technologies like LFTR.

      --


      Chas - The one, the only.
      THANK GOD!!!
    4. Re:Fukushima, Baby by mdsolar · · Score: 1

      Strip mines do get returned to grade and much faster than exclusion zones can be re-inhabited. So, you don't really have a point here. Turns out Germany is managing much butter than Japan. http://www.forbes.com/sites/am...

    5. Re:Fukushima, Baby by Anonymous Coward · · Score: 1

      No grandparent really does have a point, what you aren't taking account of is all the pollutants that burning lignite spreads across the environment, including radioactive materials. Burning coal and coal like substances is the most polluting way we generate electricity at the moment by far, any thing else we use is far far better.

      Thus they've swapped out low pollution for very high pollution. Which means in principle the Greens failed at their mission statement.

    6. Re:Fukushima, Baby by Applehu+Akbar · · Score: 1

      This is an article by Amory Lovins, a well known axe-grinder from the darkest days of the Seventies, not by a nuclear expert. Forbes is run by Wall Street lunkheads who don't know the difference. When Germany turned off the first half of its nuclear plants in its panic after Fukushima, it had the fallback of being able to buy power from France while it shifts its own generation baseload to brown coal.

      Japan has no adjacent nuclear country to get transitional power from (Korea is too far away and is too busy smelting the steel that Germany no longer can) and being a totally igneous country has no domestic coal supply to transition to. Japan is limping along right now on a power grid whose shortfall is being made up by hastily reactivated old coal and natural gas plants that had been mothballed for years. The fuel for these plants all has to be imported at great expense, which is why Japan is restarting its nuclear plants after a series of post-Fukushima safety tests. Something tells me that Germany never will turn off the second half of its nuclear plants as scheduled in 2022, especially if science gives additional support to the AGW hypothesis and/or if low-cost standardized reactors start pouring off Chinese assembly lines.

    7. Re:Fukushima, Baby by mdsolar · · Score: 1

      RTFA

  10. Re:There is no "safe" amount of ionizing radiation by khallow · · Score: 4, Insightful

    Yep, I think we can all agree that it's worth a few punkin' headed babies and/or a couple of deaths so the rest of us can have brighter colors and whiter whites.

    I know you're trying to be sarcastic, but yes, that is right. A small or even non-existent harm for vast benefit to many people justifies the harm. Given that we know there are far more serious problems, not just environmental, but of the human condition, this is a strong indication that we should be bothering with those big problems rather than obsessing over the small or non-existent ones.

  11. You know what song to sing these lyrics to... by Anonymous Coward · · Score: 0

    I can't get enu-uff radiation
    I can't get enu-uff radiation
    'Cause I try and I try and I try and I try
    I can't get no, I can't get no
    When I'm glowin' in the dark
    And that man comes from the EPA
    And he's tellin' me more and more
    About some useless regulation
    Supposed to fire my imagination
    I can't get enuff, oh no no no
    Hey hey hey, that's what I say
    I can't get enu-uff radiation
    I can't get enu-uff radiation

  12. Re:Fossil fuel plants get to radiate us all they w by fuzzyfuzzyfungus · · Score: 4, Insightful

    I am not impressed with the state of coal fired emissions regulation (sulfur compounds are down; but fly ash certainly isn't something that cures what ails you, and the general 'Eh, old stuff just gets grandfathered because we can't fight the incumbents' model of regulation is broken); but your snarking about the poor reactors being treated as unnatural is rather flawed.

    The further your coal gets from being pure carbon, the more dire some of the potential aerosolized-and-spread-hither-and-yon materials are; but the process is just conventional chemistry, you aren't going to emit anything you didn't dig up(except the added oxygen). A nuclear reactor; shockingly enough, is not subject to this limitation, and fairly aggressively shoves assorted fissionables down the decay chain.

    Aside from the one (known) incident at Oklo, the crust isn't seeing much in the way of activity above background decay rates, and it follows that anything with a short half life is going to be extremely scarce. Something that's been dug up, concentrated, and carefully stewed in its own neutrons, by contrast, will have a very different collection of isotopes, some remarkably scarce anywhere else.

    This doesn't mean that coal power is good for you, or restricted in what it contributes to our air supply; because that is very unlikely; but it's just silly to pretend that reactor products are isotopically similar to what you'll find in the ground; the 'power' in 'nuclear power' is only there because they aren't.

  13. Re:There is no "safe" amount of ionizing radiation by Anonymous Coward · · Score: 0

    The poster you replied to said nothing of what costs to use in the cost benefit analysis, so that doesn't imply that it would be necessarily allowing deaths or mutations, etc. You can easily apply a very high price to death or whatever abomination you want. You're going to still end up with situations where you are choosing between two different sources of death (well, allowing this might kill someone, but the result of it might also save lives...). And if you put a high enough price on it, you end up with laws that are like a computer trying to follow Asimov's laws, suggesting that everyone be not allowed to leave their home.

  14. Banquiao, baby. 230,000 killed by hydroelectric da by raymorris · · Score: 1

    Fukishima killed 1,000 people, which is really sad. 230,000 were killed by the Banquiao hydroelectric dam disaster. Even if the worst nuclear accident in history happened EVERY YEAR, it would still be safer than hydroelectric.

      Let's look at US safety standards. The one accident at a US nuclear utility which some find concerning occurred in 1979, at Three Mile Island. Fatalities linked to the Three Mile Island incident total zero, as shown by Hatch, Beyea, Nieves, and Susser (1990) and many other studies. The same year, in 1979, 1,800 people were killed in the Morvi hydroelectric plant failure (Noorani 1984). Also the same year, 130 people were killed in coal mining accidents as shown by Mine Safety and Health Administration reports (2010). This shows that even in the worst year for US nuclear power, the alternatives were infinitely more hazardous. Internationally, Fukushima and Chernobyl later grabbed headlines. While the failure of the old Russian reactor at Chernobyl did kill an estimated 4,000 people (Sovacool 2008), this pales in comparison to the 230,000 killed in the Banqiao hydroelectric disaster (Pisaniello 2009). Fukushima caused the loss of 1,000 lives (von Hippel 2011), yet more were killed in Jesse oil pipeline explosion (Sovacool 2008). Sovacool calculates that in total, energy accidents killed 182,156 people from 1907-2007 and all nuclear accidents in history represent just 2% of those fatalities. Nothing is perfectly safe, but energy must come from somewhere and nuclear has proven to be far safer than the alternatives for large-scale power production.

  15. Re:Fossil fuel plants get to radiate us all they w by Anonymous Coward · · Score: 0

    Some of your points are not quite right, but,

    No, because that is "naturally occurring", as if because it's "natural" radiation it does us no harm. What we need to do is hold up fossil fuels to the same standard as nuclear power. We'd switch over to nuclear power on that aspect alone.

    That's spot on. If you held up fossil fuels to same standard as nuclear power for radioactive emissions, they would have to shut them all down.

    Coal is 2-3 ppm uranium and 4-5 ppm thorium. Since world burns 7,000 million tons of coal a year, we are talking about release into the atmosphere of 15,000,000 kg of uranium and 30,000,000 kg of thorium. And yes, that is more quite a bit of uranium considering

    http://en.wikipedia.org/wiki/U...

    uranium demand is about 100,000,000 kg per year. So you can supply 15% of entire world uranium from just the coal emissions. And no, scrubbers don't remove uranium from coal emissions.

  16. You forgot about Chernobyl by SuperBanana · · Score: 1

    230,000 were killed by the Banquiao hydroelectric dam disaster.

    Not quite. 20,000 were killed in the immediate flooding. The rest were killed in the epidemics, famines, etc that followed.

    Even if the worst nuclear accident in history happened EVERY YEAR, it would still be safer than hydroelectric.

    If you're going to claim indirect deaths as you did above, then I'm going to claim indirect deaths too.

    http://www.who.int/ionizing_ra...

    Chernobyl didn't kill that many people directly/immediately, but it has impacted the health of hundreds of thousands, if not millions, of people. It will continue to do so, for generations. Nuclear disasters never go away.

    Where X is 10-100 times larger than Y: Increasing the cancer risks for X people isn't 'better' than immediately wiping Y people off the map.

    1. Re:You forgot about Chernobyl by Anonymous Coward · · Score: 0

      ^ Right. Or a very simple non-disaster example - smoking cigarettes.
      Lighting up a smoke, or even smoking a pack, isn't going to kill you (or most likely not, barring some pre-existing condition).
      Smoking two packs a day for 40 years might well wind up with you dying from lung cancer or other related medical issues.
      Most people would consider someone that died at age 50 from lung cancer, after 30+ years of smoking "like a chimney", of having "died from smoking" - statistically if they hadn't been a smoker they might well have lived another 20+yrs (barring the obvious car crashes and other potential hazards of life, accidents).

      Sure, maybe a small number of people died immediately (or within a few months) of Chernobyl, from massive radiation poisoning, but that doesn't count the number of people who died several years later from other complications, increased radioactivity in their food, etc. If statistically the average lifespan of someone in the Chernobyl area was, say, 70yrs, and suddenly "post-accident" life expectancy drops to 55yrs from an above normal incidence of cancers say, then statistically the radiation from Chernobyl 'killed them' (shortened their lifespan rather dramatically).

    2. Re:You forgot about Chernobyl by Anonymous Coward · · Score: 0

      Chernobyl didn't kill that many people directly/immediately, but it has impacted the health of hundreds of thousands, if not millions, of people. It will continue to do so, for generations. Nuclear disasters never go away.

      Where X is 10-100 times larger than Y: Increasing the cancer risks for X people isn't 'better' than immediately wiping Y people off the map.

      You seem to be using a rather loose meaning of "impact the health" if interpreting it as giving a chance of condition instead of actually giving the condition. The number of excess thyroid cases over 20-30 years has been thousands, with a ~95% survival rate (still really sucks to get it even if you survive though). The incident rates are already seen to be dropping too, so this isn't like it is going to go on as is for generations. Incidence of other types of cancer has changed so little as to be lost in noise and difficult for researchers to determine if there are any excesses at all. Almost as much impact resulted from psychological damage, where there was an excess of thousands of abortions over part of that time period, linked to people scared of having children afterwards.

      The X and Y in your last line end up being about the same size, if taking Y to be deaths from immediate flooding, and X to be anyone who got thyroid cancer from Chernobyl, previous and future (can even through the abortions in there too).

    3. Re:You forgot about Chernobyl by Anonymous Coward · · Score: 0

      It will continue to do so, for generations. Nuclear disasters never go away.

      The only increased incidence that can be seen with any statistical significance in the general population (as opposed to the workers that cleaned up the area after the accident) is thyroid cancer. This would be due to exposure to I-131 after the accident. Since that has an 8 day half-life, it is effectively gone now, and there is no seen increase in thyroid cancer rates in people born after the accident. The damage is done, and it is just a matter of which people in that group will get thyroid cancer before they get die from another cause (and most will survive that cancer at least). That won't be a generations effect, but is quite explicitly a single generation effect that will be gone when everyone who was alive during the accident has died.

  17. Re:Fossil fuel plants get to radiate us all they w by blindseer · · Score: 1

    Yes, all kinds of interesting things can come from nuclear fission. Some of them very valuable precisely because of their interesting radioactive properties.

    What's happening here is that the EPA is considering lifting some of the restrictions on some of the radioactive gasses that are difficult to contain and have half lives that are too short or too long to radiate humans in any statistically significant manner. They are not considering changes to the radioactive solids, the stuff that can affect human health.

    Calling radiation that has been released from human activity as "natural" does not follow. That radon or other radioactive material from mining would not be in the atmosphere it it was not disturbed. It would have decayed underground where no human would have been exposed. Now that the gasses have been released by mining people have been exposed to increased radiation. But the EPA ignores it because they feel like it.

    Point is that nothing exists in a vacuum, and there is no such thing as a free lunch. We can develop nuclear power and reap the rewards it offers, we can keep digging up coal, or we can revert to a nearly cave man existence of wind and solar power. Humans lived on wind, solar, and bio fuels for thousands of years. Much of that supported by slavery. I suspect if we abandon nuclear and fossil power we will revert to things like slavery. We didn't escape from such poverty until we found fossil fuels and made carbon our slave. Unless something better comes along we have a choice, nuclear power, fossil fuels, or Little House on the Prairie.

    --
    I am armed because I am free. I am free because I am armed.
  18. Re: There is no "safe" amount of ionizing radiatio by Anonymous Coward · · Score: 0

    People like you are the reason people like your parent poster old the view they hold, Mr. Burns.

  19. time line calculation by Anonymous Coward · · Score: 0

    The effects of radiation are cumulative so one can adjust the consequences of radiation arbitrarily to fit any conclusion. For example, suppose you want to claim that a million people will die of cancer at a given level of radiation. All you have to do is lengthen the calculated time span and sure enough there will be a million cancers in the period. Its works the other way, if you want to reduce consequences just shorten the time span. What that means in practice is that practically any level of exposure to radiation that doesn't kill in a week or so can be make acceptable and conversely any level of radiation above zero can be shown to cause unacceptable injuries in the long term.

  20. Re:headed in the wrong direction...riiight! by Chas · · Score: 3, Informative

    Never mind that, even were all nuclear power stations (and their accumulated waste waste), and the effects of every nuclear test in history to disappear from the planet TODAY, you'd STILL be living in an environment FILLED with radiation.

    And how do you explain places like Guarapari Brazil, with its naturally radioactive beaches? Where the average exposure a year is 175 mS? Yet they don't have higher instances of cancer and radiation-related disease?

    I'm sorry, your views of radiation, and its place in nature are uneducated, fear-driven and have no real basis in "science".

    --


    Chas - The one, the only.
    THANK GOD!!!
  21. Re:There is no "safe" amount of ionizing radiation by Mr+D+from+63 · · Score: 1

    I'm sick and tired of the notion that it's OK to pollute, as long as you don't pollute "too much."

    Agreed in principal, although I am sure even you pollute. Thankfully we have had nuclear plants that don't pollute the air or emit contaminants that wind up in anyone's blood. Too bad that damn sun is beaming us with radiation all the time, while almost nobody except those that enter reactor buildings gets any comparatively measurable exposure to radiation from the plant itself.

  22. Re: There is no "safe" amount of ionizing radiatio by khallow · · Score: 1

    So merely having an opinion can make other people total tools and idiots? Yea right. Save the amateur psychology for someone who cares.

  23. This is nuts by neiras · · Score: 0

    Beyond the sick-fuckery involved in permanently deafening marine life after just one exposure to the signal, it really pisses me off that the gathered data remains a secret between the government and the oil companies.

    This shit is just disgusting all around.

  24. Re:Banquiao, baby. 230,000 killed by hydroelectric by Anonymous Coward · · Score: 0

    Fukishima killed 1,000 people

    Huh?

  25. Re:Fossil fuel plants get to radiate us all they w by Anonymous Coward · · Score: 0

    Stop just ranting how nuclear is treated unfairly. Nuclear fanboyism doesnt contribute to the discussion. Want to change things? Give evidence. Stay on topic. I was going to mod you down but you seem to have some valid points in there amid the frothing politics.

  26. Re:Banquiao, baby. 230,000 killed by hydroelectric by Mr+D+from+63 · · Score: 2

    Fukishima killed 1,000 people, which is really sad.

    Nobody was killed from the nuclear accident at Fukushima. Some were killed by the Tsunami, of course. Workers have been injured from construction type activities, but it is nowhere near 1,000.

  27. Re:There is no "safe" amount of ionizing radiation by Chas · · Score: 5, Insightful

    Sorry, but YES.

    This isn't about "brighter colors" and "whiter whites".

    It's about providing for the world's energy needs WITHOUT massive greenhouse gas pollution, whose effects could kill off significant chunks of life on this planet.

    Unless YOU want to be one of the unlucky 99% who is volunteering to go shiver and starve in a cave someplace.

    --


    Chas - The one, the only.
    THANK GOD!!!
  28. Re:Banquiao, baby. 230,000 killed by hydroelectric by Chas · · Score: 0

    Fukishima killed 1,000 people, which is really sad.

    Uh. Actually, Fukushima killed NOBODY.

    The earthquake and the tsunami killed people, sure. But not the reactor meltdown.

    NO short-term radiation exposure fatalities were reported.
    There were 37 physical injuries and 2 people taken to the hospital with radiation burns.

    But no deaths.

    So sure, if Fukushima happened once a year, we'd wind up with a lot of earthquake and Tsunami victims at first.
    Then we'd build structures that can withstand those conditions, and even be able to stop the meltdowns. Either through better engineering or by switching to safer nuclear technology (oh yeah, and not trusting those ass-covering cock-mongers at TEPCO).

    --


    Chas - The one, the only.
    THANK GOD!!!
  29. Re:Banquiao, baby. 230,000 killed by hydroelectric by khallow · · Score: 1

    I've heard of two workers killed in industrial accidents on the Fukushima site after the accident started. But that does seem a rather smaller number than 1,000. Maybe this was a really big value of 2?

  30. Re:Fossil fuel plants get to radiate us all they w by Bob9113 · · Score: 1

    While the EPA is thinking about raising limits on how much radioactive material nuclear power plants can release into the environment there are no limits on what coal plants can release.

    "But Teacher! Billy is punching people, so why can't I punch people?!?"

    If you have empirical data to present on the risk of the current levels of radiation exposure measured in QALYs, and an argument for adjusting the current regulated level, present it. But saying that we should ease our regulation on this form of harm, merely because you assert that another form of harm is insufficiently regulated, is manipulative and irrational.

  31. Re:There is no "safe" amount of ionizing radiation by bidule · · Score: 4, Insightful

    I'm sick and tired of the notion that it's OK to pollute, as long as you don't pollute "too much."

    If it isn't "too much", it isn't pollution.

    In a sense, breathing and pissing are polluting but as long as the ecosystem can handle it you are in a sustainable pattern.

    --
    ID: the nose did not occur naturally, how would we wear glasses otherwise? (apologies to Voltaire)
  32. Relaxed vs Stressed Out by grep+-v+'.*'+* · · Score: 1

    Relaxed Radiation? Good. I don't want ANYthing stressed out around nuclear power -- the pipes, the operators, OR the radiation.

    Anything that keeps them all mellow and not blowing up to bits ;-) is fine with me.

    --
    If the universe is someone's simulation -- does that mean the stars are just stuck pixels?
  33. Some studies on Tritium by MrKaos · · Score: 1

    These scientific studies are on the effects of tritium on living beings.

    Some of them show that Triated water's effect is biologically mutagenic *because* it's a low energy emitter and it's characteristics makes readily absorbed by surrounding cells. The available evidence from studies conducted journal a list of effects. From those works;

    Tritium can be inhaled, ingested, or absorbed through skin. Eating food containing 3H can be even more damaging than drinking 3H bound in water. Consequently, an estimated radiation dose based only on ingestion of tritiated water may underestimate the health effects if the person has also consumed food contaminated with tritium. (Komatsu)

    Studies indicate that lower doses of tritium can cause more cell death (Dobson, 1976), mutations (Ito) and chromosome damage (Hori) per dose than higher tritium doses. Tritium can impart damage which is two or more times greater per dose than either x-rays or gamma rays.

    (Straume) (Dobson, 1976) There is no evidence of a threshold for damage from 3H exposure; even the smallest amount of tritium can have negative health impacts. (Dobson, 1974) Organically bound tritium (tritium bound in animal or plant tissue) can stay in the body for 10 years or more.

    It's often said "of all the elements in nuclear waste tritium is one of the more harmless ones" and while it's more benign than most other radioactive effluents it's toxicity should not be under-estimated.

    Tritium can cause mutations, tumors and cell death. (Rytomaa) Tritiated water is associated with significantly decreased weight of brain and genital tract organs in mice (Torok) and can cause irreversible loss of female germ cells in both mice and monkeys even at low concentrations. (Dobson, 1979) (Laskey) Tritium from tritiated water can become incorporated into DNA, the molecular basis of heredity for living organisms. DNA is especially sensitive to radiation. (Hori) A cell's exposure to tritium bound in DNA can be even more toxic than its exposure to tritium in water. (Straume)(Carr)

    First, as an isotope of hydrogen (the cell's most ubiquitous element), tritium can be incorporated into essentially all portions of the living machinery; and it is not innocuous -- deaths have occurred in industry from occupational overexposure. R. Lowry Dobson, MD, PhD. (1979)

    References;

    Komatsu, K and Okumura, Y. Radiation Dose to Mouse Liver Cells from Ingestion of Tritiated Food or Water. Health Physics. 58. 5:625-629. 1990.

    Dobson, RL. The Toxicity of Tritium. International Atomic Energy Agency symposium, Vienna: Biological Implications of Radionuclides Released from Nuclear Industries v. 1: 203. 1979.

    Hori, TA and Nakai, S. Unusual Dose-Response of Chromosome Aberrations Induced in Human Lymphocytes by Very Low Dose Exposures to Tritium. Mutation Research. 50: 101-110. 1978.

    Straume, T and Carsten, AL.Tritium Radiobiology and Relative Biological Effectiveness. Health Physics. 65 (6) :657-672; 1993. [This special issue of Health Physics is entirely devoted to Tritium]

    Laskey, JW, et al. Some Effects of Lifetime Parental Exposure to Low Levels of Tritium on the F2 Generation. Radiation Research.56:171-179. 1973.

    Rytomaa, T, et al. Radiotoxicity of Tritium-Labelled Molecules. International Atomic Energy Agency symposium,Vienna: Biological Implications of Radionuclides Released from Nuclear Industries v. 1: 339. 1979.

    --
    My ism, it's full of beliefs.
    1. Re:Some studies on Tritium by AHuxley · · Score: 1

      The main thrust of relaxing is for Japan.
      Then you have the sites in the USA that have got new paper work to run for decades more.
      The "unusual event" reports on early warning alarm shuts downs at sites makes the US news over the past few years.
      Then you have the US storage site clean ups.
      Best to change national standards, stop funding quality US epidemiology, stop the tiny gov grants for books and books chapters on cancer clusters.
      Then over time the next generations of top medical staff will be very tame :) Great in the ER but none of that messy long term pathology study work that finds 'facts' over decades.
      Another trick is to only talk of basic external exposure issues. Never ever mention ingestion, lungs. Thats a great talking point and can really fool the wider public.
      i.e. that filter has to work 100% of the time as a worker goes about their daily tasks over a life of the site, plant every year :)
      So there is huge effort to get the talking points out about safe new numbers and lessen the mention of what is in the air.

      --
      Domestic spying is now "Benign Information Gathering"
    2. Re:Some studies on Tritium by Chas · · Score: 1

      Great. That's Tritium (Hydrogen 3). When combined with oxygen it produces so-called "heavy water" T2O. Which means your body treats it like water. And it can pretty much go anywhere good old H2O can in your system. So yeah, with that kind of intimate exposure in your system, it can do lots and lots of potential damage.

      --


      Chas - The one, the only.
      THANK GOD!!!
    3. Re:Some studies on Tritium by MrKaos · · Score: 1

      The main thrust of relaxing is for Japan.

      Then you have the sites in the USA that have got new paper work to run for decades more.

      The "unusual event" reports on early warning alarm shuts downs at sites makes the US news over the past few years.

      Then you have the US storage site clean ups.

      A plethora of effluents.

      Best to change national standards, stop funding quality US epidemiology, stop the tiny gov grants for books and books chapters on cancer clusters.

      If you can't fix the problem, fiddle the figures.

      Then over time the next generations of top medical staff will be very tame :) Great in the ER but none of that messy long term pathology study work that finds 'facts' over decades.

      Coupled with things like the IAEA can exert publishing interdictions against the WHO when they study or publish something about nuclear effluents effect on humans it makes for a very tightly controlled flow of information.

      Another trick is to only talk of basic external exposure issues. Never ever mention ingestion, lungs. That's a great talking point and can really fool the wider public.

      Exactly.

      So there is huge effort to get the talking points out about safe new numbers and lessen the mention of what is in the air.

      It's disturbing that you refer to that as I have heard numerous reports of radioactive garbage exposed at Fukushima province being burnt all around Japan. It seems that distributing the materials affects that ability to get a control when doing a study as a basis for legal action. It seems some of the lessons learned at Chernobyl are being used in quit sinister ways to deny potential litigants access to legal remedies.

      --
      My ism, it's full of beliefs.
    4. Re:Some studies on Tritium by MrKaos · · Score: 1

      These studies are around 30 years old!

      That's correct, and has anything changed? Do brains now grow to normal size when exposed to H3?

      How do you respond to:

      Smith, Geoffrey Battle; Grof, Yair; Navarrette, Adrianne; Guilmette, Raymond A. (2011). "Exploring Biological Effects of Low Level Radiation from the Other Side of Background". Health Physics 100 (3): 263Ãff"5. doi:10.1097/HP.0b013e318208cd44. PMID 21595063.

      Looks like it could be interesting when it is complete. It is studying the effect of radiation on a bacteria.

      Capece, D.; Fratini, E. (2012). "The use of pKZ1 mouse chromosomal inversion assay to study biological effects of environmental background radiation". The European Physical Journal Plus 127 (4): 37. Bibcode:2012EPJP..127...37C. doi:10.1140/epjp/i2012-12037-7.

      which show an opposite effect?

      Again, interesting. I will buy a full copy and go through it, so thanks. However, reading the part that is available says that it is studying the effect of cosmic (and lack of) on cells. I'm curios about the in-vivo model, so I will certainly set some time aside to examine and absorb it.

      How do you respond to:

      These studies study "emitted" radiation on cells not the effect of a radioisotope, like Tritium, as an "emitter" in the body. The changes being discussed are considering allowing more radioactive isoptopes, as effluent, into the environment, so if you are asking if these papers are relevant, not really. Certainly interesting though, and thank you for pointing them out Mr AC.

      --
      My ism, it's full of beliefs.
    5. Re:Some studies on Tritium by Anonymous Coward · · Score: 0

      Not the same AC, and unfortunately I don't have time to look up the sources, but I remember distinctly coming across studies before showing that there is not much distinction between external and internal sources when dealing with cells (not to be confused with external vs. internal sources for the body, which have a huge difference). This actually came as a surprise. It was supposed to be a test that some sources of radiation had a higher biological effectiveness due to being in the cell and especially with elements that are components of DNA, but results came up the opposite. While DNA is sensitive, it doesn't have a particularly high concentration of the composing elements compared to other parts of the cell, and the multiple induced ionization over some short distance made it not matter much if the atom was actually in the DNA when there was a bunch outside too. I don't remember if it specifically included tritium though, which has a rather low energy decay, and it excluded effects of other isotopes that due concentrate in the nucleus (some heavy metals and elements not normally used in biology).

    6. Re:Some studies on Tritium by MrKaos · · Score: 1

      Not the same AC, and unfortunately I don't have time to look up the sources, but I remember distinctly coming across studies before showing that there is not much distinction between external and internal sources when dealing with cells (not to be confused with external vs. internal sources for the body, which have a huge difference).

      Sounds interesting. Was there any data about a radioisotope that was organically bound? The studies I read show radio isotope analogues became more mutagenic in that scenario.

      This actually came as a surprise. It was supposed to be a test that some sources of radiation had a higher biological effectiveness due to being in the cell and especially with elements that are components of DNA, but results came up the opposite. While DNA is sensitive, it doesn't have a particularly high concentration of the composing elements compared to other parts of the cell, and the multiple induced ionization over some short distance made it not matter much if the atom was actually in the DNA when there was a bunch outside too.

      Perhaps the low energy characteristics of the radioisotope trick the cell into duplicating more errors in the DNA that it normally would. Still mutagenic radioisotopes inside the body - doesn't make for a happy ending.

      I don't remember if it specifically included tritium though, which has a rather low energy decay, and it excluded effects of other isotopes that due concentrate in the nucleus (some heavy metals and elements not normally used in biology).

      Perhaps another low energy beta emitter, it seems the low energy beta characteristics of tritium make it a prime cause of transgenic disease. Like I said, I would really like to see that study - if you find it - you know who/where to find me.

      --
      My ism, it's full of beliefs.
  34. Re: Great news for all by MrKaos · · Score: 1

    Wow, you haters really have got to hate.

    --
    My ism, it's full of beliefs.
  35. Radiation makes you stupid by mdsolar · · Score: 1

    "Johns Hopkins scientists report that rats exposed to high-energy particles, simulating conditions astronauts would face on a long-term deep space mission, show lapses in attention and slower reaction times, even when the radiation exposure is in extremely low dose ranges. The cognitive impairments — which affected a large subset, but far from all, of the animals — appear to be linked to protein changes in the brain, the scientists say." http://www.hopkinsmedicine.org...

  36. Re: There is no "safe" amount of ionizing radiatio by poptix · · Score: 1

    Holy shit, CHEMICALS! RUN FOR THE HILLS! The dihydrogen monoxide is going to kill you!

    --
    Just because you disagree doesn't mean it's not true.
  37. How stupid by mdsolar · · Score: 1

    Coal ash is old soil. It screens radiation just as much as soil. There is no increase in radiation. In fact, dilution of carbon-14 in the atmosphere (and thus food) leads to reduced radiation exposure as a result of fossil fuel use.

    1. Re:How stupid by Chas · · Score: 1

      Howsabout a few facts to support that assumption.

      --


      Chas - The one, the only.
      THANK GOD!!!
    2. Re:How stupid by mdsolar · · Score: 1

      Compare the uranium content of coal ash and low carbon soil. It's the same. It is well known that carbon-14 comes from thermal neutron absorption by nitrogen in the upper atmosphere. Isolating carbon from the atmosphere causes the fraction of carbon-14 to fall. This is how radiocarbon dating works. Diluting the atmospheric carbon with fossil carbon reduces the carbon-14 content of food and thus our internal radiation load.

    3. Re:How stupid by Chas · · Score: 1

      I said "facts". Not you simply spouting words.
      Something that actually supports what you're saying.

      And how you jumped from dumping uranium and thorium into the atmosphere to "Carbon-14", I dunno.

      --


      Chas - The one, the only.
      THANK GOD!!!
    4. Re:How stupid by mdsolar · · Score: 1

      Doesn't go into the atmosphere, it is scrubbed or remains at the bottom. You've likely been bamboozled based on your comment. The nuclear industry put out some false info on this a while back. Fossil fuel use reduces rather than increases radiation exposure.

    5. Re:How stupid by Anonymous Coward · · Score: 0

      Carbon-14 exposure is about 12 uSv a year, or in other words, about 0.4% of typical person's background exposure (a source although you can calculate it yourself with some effort). The reduction in C-14 is rather difficult to measure (also mentioned in that report) because of a bunch emitted by nuclear weapons testing, but estimates in the radiocarbon dating field, where it is known as the Seuss effect, give about 3% in the atmosphere, or 0.2% in the entire biosphere (the oceans are slow to respond to changes in C-14). So you're talking about a potential 0.012% change in background levels, of which only parts of that are due to coal and other power production.

      Estimates of the amount of uranium, thorium, and daughter products (some of which are much harder to capture) can go down to about ~1 uSv/a exposure for those living in the vicinity of a power plant with modern scrubbers. This is still larger than the ~0.3-0.4 uSv/a difference in C-14 over some area, although both are quite small either way. The bigger effect comes from mining, whether coal, uranium, or other metals, which can release a lot of radium into water supplies and radon from the mines.

    6. Re:How stupid by mdsolar · · Score: 1

      You should consider carbon-14 incorporated in a cell nucleus I think.

    7. Re:How stupid by mdsolar · · Score: 1

      You forgot also to account for the screening effect of piling the coal ash as well. That makes the change in radiation zero. You may also be confusing permil with percent. We know about 30% of the carbon in the atmosphere comes from fossil fuels so that is about the dilution amount presently. We really only care about the atmosphere since that is where the carbon in our food comes from.

    8. Re:How stupid by Anonymous Coward · · Score: 0

      Several heavy metals and especially transuranics tend to concentrate in the nucleus too for unknown reasons, and was thought in part to contribute to the biological effectiveness of alpha radiation. However, further research shows no difference between biological effectiveness for dosing external or internal to a cell (not to be confused external or internal too the body. The 12 uSv comes from committed does that takes these things into effect).

    9. Re:How stupid by Anonymous Coward · · Score: 0

      You forgot also to account for the screening effect of piling the coal ash as well.

      This isn't relevant anyway, since most are not talking about living on top of a pile of coal ash. The issue is more general, uncontained release in the form of small percentage not removed by scrubbers or by leaching of daughter products from ash, neither of which is solved by piling (and can be made worse in the leaching case depending on the exact chemistry of the ash in consideration).

      You may also be confusing permil with percent.

      No, those previous figures were percentages, not from per mil. Estimates of the Suess effect from tree rings varies from 3-25%, because there are a lot of factors involved and it is not a straightforward measurement, and can be quite regional too. The C14 from nuclear testing is nearly gone now, but the global C14 levels are settling at a point a couple percent higher than they were before nuclear testing, and a lot of modeling has been struggling to explain this.

      We really only care about the atmosphere since that is where the carbon in our food comes from.

      The atmosphere is a very small fraction of the carbon cycle, and exchanges at least 20% of the carbon each year with other parts of the cycle. This is why you can see very short term region effects where percent change in CO2 equals percent change in C14, but longer term trends are much more complicated. This source covers some of the mess. The annual production of carbon dioxide by humans is quite small compared to the total carbon reservoir accessible to the carbon cycle, and while a lot piles up in the atmosphere, it does exchange. And this isn't even getting into that the low energy emissions from C14 have a much lower biological impact that other sources, despite being part of things like DNA, resulting in a much lower amount of exposure from C14 than from other sources.

    10. Re:How stupid by mdsolar · · Score: 1

      Of course it is relevant. You are making the claim that using a bulldozer on a construction site increase background radiation in essence.

      That fossil fuels have contributed to cutting the amount of bomb carbon-14 in our diets is a good thing. You are looking at the math all wrong on that. The dilution applies to whatever carbon-14 is out there. Our food comes from this year's atmospheric carbon, not some tree ring record, so don't let yourself get confused.

    11. Re:How stupid by Anonymous Coward · · Score: 0

      Of course it is relevant. You are making the claim that using a bulldozer on a construction site increase background radiation in essence.

      None of the complaints being made were concerning radiation in the piles of coal ash, only in what is released into the atmosphere and in water supply. The piling of coal ash and any screening involved there is not relevant. Unless mean the piling of ash in the air when it lands on the ground, but then it also not relevant considering the ash has higher concentrations of radioactive elements than soil and surface rocks, there is not much of it in bulk on the ground, and that also wouldn't be relevant to introduction into food or inhalation.

      Our food comes from this year's atmospheric carbon, not some tree ring record, so don't let yourself get confused.

      Trees are plants... and make their tree rings out of whatever carbon is in the atmosphere the same way that food does. It is not easy to find annual storage of apples or carrots (except for wine, which has been studied in a few cases for dating purposes), but real easy to find trees in a lot of areas that act as a record of C14 absorbed by plants. Various such records are used to measure C14 going back to before nuclear testing and before industrial period. The resulting net effect, which has been difficult to measure due to the nuclear testing, has been a lot smaller than expected in recent times for unknown reasons. With an effective residence half-life in the atmosphere of 5 years, and decades since nuclear testing nearly stopped (especially since above ground tests), levels still have not returned to what they were before testing and they look like they will level off higher, which goes against what a lot of models predicted. It is pretty common to see a talk or two at conferences titled "Seuss effect... where is it?" trying to understand why it hasn't been seen on the global scale in recent times yet.

      You are looking at the math all wrong on that. The dilution applies to whatever carbon-14 is out there.

      And a lot of the carbon-14 out there is not in the atmosphere, and it has been clearly shown that carbon in the atmosphere exchanges on a timescale of years with those other reservoirs. This means a lot of the carbon-14 free carbon from fossil fuels ends up in places other than the atmosphere. This is pretty clearly seen considering about 6 Gt is released a year from fossil fuels, but the amount of carbon in the atmosphere only increases by about 3 Gt a year. The atmosphere represents only about a sixth of the carbon reserve on the short time scales, and on longer (but still human) time scales is a couple percent.

    12. Re:How stupid by mdsolar · · Score: 1

      "but then it also not relevant considering the ash has higher concentrations of radioactive elements than soil and surface rocks" except it doesn't since it is soil itself.

    13. Re:How stupid by Anonymous Coward · · Score: 0

      Numerous sources were provided with hard numbers, and sources you've linked yourself even show that while coal has similar concentrations to soil, that the ash concentrates this by ten. When the vast majority of the US has surface concentrations below 5 ppm, you can't argue that examples of 15+ ppm is not higher concentration unless you can't count. If you want to argue fly ash is soil, might was well argue the waste at Mayak facility is just soil too.

    14. Re:How stupid by mdsolar · · Score: 1

      You've forgotten the carbon content of some soils. Coal ash is similar to low carbon soils such as those used for home building or commercial constructions to avoid subsidence.

  38. Re:Fossil fuel plants get to radiate us all they w by Anonymous Coward · · Score: 0
  39. Idea which has to do with prisons and radiaton by Anonymous Coward · · Score: 0

    Put prisons nears reactors and reactor dumping grounds. The cons get shorter lives and can't reproduce and the boffins can study the effects of exposure the proper way. Win! Win!

  40. Re:Fossil fuel plants get to radiate us all they w by Anonymous Coward · · Score: 0

    > No one has yet made a solar panel that can make a profit.

    What does that even mean?

  41. You fail statistics forever. Science too! by Chas · · Score: 2

    There's no such thing as "zero" radiation.

    You'd DIE in a zero-radiation environment, as your body and its symbionts are accustomed to certain levels of naturally occurring radiation in the background.

    Also, contrary to your assertion, there's no such thing as a linear progression of exposure levels to cancer.

    Average background radiation is usually between 1-3 mS. But there are places like Guarapari, Brazil, where the background radiation is something in excess of 175 mS.

    But you do NOT find 175x the instances of cancer there.

    Try again.

    --


    Chas - The one, the only.
    THANK GOD!!!
  42. I notice.... by Anonymous Coward · · Score: 1

    ...that this story carefully avoids the two fairly recent experiments which are critical to the understanding of the effects of low-dose radiation. These are:

      Smith, Geoffrey Battle; Grof, Yair; Navarrette, Adrianne; Guilmette, Raymond A. (2011). "Exploring Biological Effects of Low Level Radiation from the Other Side of Background". Health Physics 100 (3): 263Ã"5. doi:10.1097/HP.0b013e318208cd44. PMID 21595063.

    Capece, D.; Fratini, E. (2012). "The use of pKZ1 mouse chromosomal inversion assay to study biological effects of environmental background radiation". The European Physical Journal Plus 127 (4): 37. Bibcode:2012EPJP..127...37C. doi:10.1140/epjp/i2012-12037-7.

    Everyone is well aware that the hysteria about radiation dose -so regularly stoked up by the green activists - depends on the adoption of a linear no-threshold model. This assumes that there is NO level of radiation which is not harmful, and ignores the fact that people in high natural radiation spots do not exhibit increased levels of radiation damage which the LNTM predicts.

    Both the referenced papers above describe experiments where cells were exposed to environments where ionising radiation had been carefully excluded, in underground Ultra-low Radiation labs. In all cases the cells became unhealthy and growth-inhibited.

    Don't just keep reinforcing green prejudice. Read them.

  43. Back up your opinion, at least by Firethorn · · Score: 1

    At least your opinion is backed up by facts and reasoning, unlike the AC's.

    Fact: Humans today, on the whole, live better lives than they ever have before.

    Brighter colors and whiter whites is only a small fraction of what makes our quality of life so much better. For example, modern medical care has prevented far more death, retardation, and disabilities than modern industry has created short of the sheer population increases it's enabled.

    --
    I don't read AC A human right
  44. Segmentation issue by mdsolar · · Score: 1

    Standards for small reactors should be stronger to avoid greater exposure for the public. Replacing one large reactor with fifty smaller reactors increases public exposure by a factor of fifty unless the standard is strengthened by a factor of fifty for the small reactors.

  45. The problem is enforcement by wxxy___ · · Score: 1

    I work in a facility where there are government inspectors on site 24/7 and the things we get away with are absurd. From my own personal experience regulations are already barely even payed lip service as it is.

  46. Some studies on Tritium by Anonymous Coward · · Score: 0

    These studies are around 30 years old!

    How do you respond to:

    Smith, Geoffrey Battle; Grof, Yair; Navarrette, Adrianne; Guilmette, Raymond A. (2011). "Exploring Biological Effects of Low Level Radiation from the Other Side of Background". Health Physics 100 (3): 263Ãff"5. doi:10.1097/HP.0b013e318208cd44. PMID 21595063.

    Capece, D.; Fratini, E. (2012). "The use of pKZ1 mouse chromosomal inversion assay to study biological effects of environmental background radiation". The European Physical Journal Plus 127 (4): 37. Bibcode:2012EPJP..127...37C. doi:10.1140/epjp/i2012-12037-7.

    which show an opposite effect?

  47. Re:Fossil fuel plants get to radiate us all they w by drinkypoo · · Score: 1

    Point is that nothing exists in a vacuum, and there is no such thing as a free lunch. We can develop nuclear power and reap the rewards it offers, we can keep digging up coal, or we can revert to a nearly cave man existence of wind and solar power.

    Are you an idiot or a liar? There's no third way.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  48. US Western Moutain Cities with Low IQ by mdsolar · · Score: 1

    Some higher altitude cities in the US show lower average performance in Luminosity's tests. http://www.dailytech.com/Lumos... Though Provo and Ft. Collins are doing OK.

  49. margin of error by mdsolar · · Score: 1

    You use this phrase but don't seem to understand what is means, "significant associations" is the opposite of what you are saying.

    1. Re:margin of error by Mr+D+from+63 · · Score: 1

      Well, if you look at the conclusions, even the researchers stated "might" increase risk. There is a reason for that. Keep it in context of the entire body of knowledge on the matter and it is quite clear.

  50. Re:Banquiao, baby. 230,000 killed by hydroelectric by mdsolar · · Score: 1

    Many were killed by the evacuation.

  51. Re:Banquiao, baby. 230,000 killed by hydroelectric by Anonymous Coward · · Score: 0

    Radiation from Fukushima killed no one. 171000 died at Banquiao. About 2000 excess deaths at Fukushima are estimated due to the stress of evacuation. If 90% of those evacuees had stayed in place, even the discredited LNT theory predicts no real harm to them. Fear of radiation is killing far more than actual radiation.

  52. New reactors are supposed to be safer by mdsolar · · Score: 1

    Part of the EPA's instructions are to consider the costs of regulations. Since new reactors are supposed to be safer, it should be free of cost to tighten regulations. This would be the time to tighten rather than loosen regulations.

  53. Re:There is no "safe" amount of ionizing radiation by Anonymous Coward · · Score: 0

    There are no alternatives to breathing and pissing - no matter how much money you throw at it.

  54. Re:Banquiao, baby. 230,000 killed by hydroelectric by Mr+D+from+63 · · Score: 1

    Care to provide a number?

  55. Re:There is no "safe" amount of ionizing radiation by Solandri · · Score: 5, Informative

    Yep, I think we can all agree that it's worth a few punkin' headed babies and/or a couple of deaths so the rest of us can have brighter colors and whiter whites.

    That's the tradeoff we make with vaccination programs. A small percentage of kids who are vaccinated get sick, and a few of them die every year. But we still vaccinate everyone because the benefits far outweigh those costs.

    The flaw in your reasoning (it's a pretty common flawed line of reasoning, not just yours, so I'm not picking on you) is that you're trying to compare against a nonexistent zero state. Radiation can cause death. If there were no radiation, there would be no deaths. Therefore we must avoid radiation. Likewise, if we didn't vaccinate, those kids who died from vaccination wouldn't die. Therefore we shouldn't vaccinate.

    To do a correct comparison, you can't compare to a zero state. You must take into account opportunity costs; you have to compare with alternative equivalent states. Without vaccination, far more people would die from the diseases we're vaccinating against. Without nuclear power, the world loses 13% of its electricity. The harm from that far exceeds the few deaths from even Fukushima-level accidents. Or if you replaced that nuclear generation with the next most-viable alternative (coal/gas), the emissions from those are far more harmful than the radiation hazards from nuclear. Even if you managed to replace them with wind and solar, the number of deaths installing and maintaining all those turbines and rooftop panels (roughly 11,000 turbines for a Fukushima-level plant, or 4.8 million homes with 40 m^2 of panels installed on each of their roofs) far exceeds the number that nuclear has killed.*

    * Math for the wind/solar comparison:

    • The Fukushima plant had 4696 MWe of nominal generating capacity.
    • Nuclear has a capacity factor of 0.9, so in a year it produced on average 90% of that, or 4226.4 MW.
    • Average wind turbine generates about 1.5 MWe peak.
    • Onshore wind's capacity factor is about 0.25 on the high end, so in a year that turbine produces an average 375 kW.
    • You'd need 11270 1.5MW turbines to equal Fukushima's output.
    • PV Solar using high-end 20% efficient panels generates about 150 W/m^2 peak.
    • Average rooftop installation is about 20 m^2, but the roof size is about 40 m^2. So 6 kW peak.
    • Solar's capacity factor in the U.S. is 0.145. So on average the rooftop would generate 870 Watts.
    • You'd need 4.86 million rooftops to equal Fukushima's output.
    • Working in high places is dangerous. Roofing is the 5th most dangerous job in the U.S., at 34.7 fatalities per 100,000 workers each year.
    • If a solar installation requires 3 roof-top workers and they can do 100 installs per year, you'd expect 51 deaths per year vs. an estimated about 30 deaths from cancer caused by Fukushima's radiation release in a once-per-25-year accident.
    • I can't find stats for turbine worker fatality rates, but wind already kills about 5-10 maintenance workers per year while providing less than 1/10th the world's electricity that nuclear does.
  56. Re:Fossil fuel plants get to radiate us all they w by Anonymous Coward · · Score: 0

    What happens to our carbon footprint with all those electric cars powered from coal and natural gas?

    I agree with your overall point - nuclear fission is a clean, safe energy source, and these safety regulations are unreasonable, but it is worth pointing out that even with most of our electricity coming from fossil fuels, electric cars still produce something like 60 percent less carbon pollution than ICE vehicles.

  57. Re:There is no "safe" amount of ionizing radiation by sjames · · Score: 1

    The nice thing about the radioactive releases from reactors is that they *DO* go away.

    Unlike most of those chemicals, we do have a reasonable understanding of radiation's effects.

  58. increased cancer risk. See references by raymorris · · Score: 1

    1,000 is the estimate from increased cancer risk. If anything else in my post is unclear, you can check the reference I listed for each number. For example, that one says (von Hippel 2011), meaning if you Google von Hippel 2011 you can see exactly where I got that number.

    1. Re:increased cancer risk. See references by Krigl · · Score: 1

      Sorry, I'm not gonna google von Hippel, Jacobson or other concern trolls/pressure group activists/outright quacks. I've already read enough stupid, flawed shit based on their work and of course, enough about the methodology they used. This methodology is questionable (that's the accepted scientific term for bullshit, right?).

      http://www.unscear.org/docs/re...

      A bit of light reading for those interested in the amount of conservative assumptions, posited improbable scenarios, rounding up and Fermi estimates necessary to claims of actual radiation-induced health consequences to the public.

      --
      Troll 2.0 Fear my asocial networking!
  59. Re:Fossil fuel plants get to radiate us all they w by sjames · · Score: 2

    The key stat though is the radiation released. Coal plants release far more than nuclear plants. It really is silly to treat that emission with less care than emissions from a nuclear plant.

  60. Solution looking for a problem by Anonymous Coward · · Score: 0

    So... who does this help? Is this really the number one issue preventing efficient nuclear facilities?

  61. Re:You fail statistics forever. Science too! by Anonymous Coward · · Score: 0

    You'd DIE in a zero-radiation environment, as your body and its symbionts are accustomed to certain levels of naturally occurring radiation in the background.

    Not the same AC you replied to, and I don't like the LNT model, but even what you are saying here is way too far off-base. At best you could say it is just baseless, at worst, it goes against research attempts with cell cultures in extremely low radiation environments. While there is some evidence that there can be health impacts at extremely low radiation levels, none of it points to that people would just "DIE."

  62. try 4,000 and 30 years by raymorris · · Score: 1

    > but it has impacted the health of hundreds of thousands, if not millions, of people.

    Try 4,00. I gave you references for every single number in my post. Are you SO lazy you'd rather make shit up out of whole cloth rather than spend two seconds to look at the real numbers?

    > It will continue to do so, for generations. Nuclear disasters never go away.

    The half-life of cesium-137 is 30 years.

      Radioactive substances can be classified by their halflife, which is the amount of time required for half of the radiation to be emitted. A common use
    of a material with a long half-life is carbon-14 dating, used by archaeologists to measure the age
    of a plant or animal specimen. Archaeologists calculated that Ötzi the Iceman was about 5,000
    years old because the half-life of carbon-14 is 5,730 years and Ötzi emitted about half as much
    radiation as a person alive today (South Tyrol Museum of Archaeology 2013). Plants and
    animals are not considered to be a radiation risk because the half-life of C-14 and other
    components of our bodies is so long, meaning it takes thousands of years to emit appreciable
    amounts of radiation. Other substances such as iodine-131 have a short half-life, meaning they
    release radiation quickly. Handling iodine-131 is dangerous because it releases half of its
    radiation in just eight days (U.S. Environmental Department Protection Agency, 2013).
    Protection is simple, however, as the EPA advised “iodine-131's short half-life of 8 days means
    that it will decay away completely” in a few weeks. The difference can be visualized by
    comparing a household candle, which releases energy slowly, to gunpowder, which releases
    energy quickly. Gunpowder is dangerous because the energy is released quickly. A candle is
    safe to have around the house because the energy is released slowly. Radioactive substances can
    be viewed in a similar way - waste that takes thousands of years to release its energy is not
    particularly dangerous to have around.

  63. increased cancer risk by raymorris · · Score: 2

    The 1,000 figure is based on increased cancer risk. See von Hippel 2011 for details.

  64. Obama by Anonymous Coward · · Score: 0

    A clock is right two times a day.

  65. Re:Fossil fuel plants get to radiate us all they w by Anonymous Coward · · Score: 0

    I think there should be special term for idiots who spout off advice imploring the receiver to do exactly what they've done, while simultaneously ignoring it themselves. It seems to be a favorite shill tactic as of late.

  66. Re:You fail statistics forever. Science too! by Chas · · Score: 1

    Sorry but your body (and the things living in it) are used to certain levels of radiation. With ZERO radiation (which is pretty much impossible as the entire biosphere is at least marginally radioactive), you'd get a canary in the coal mine effect with your body's symbionts. Which would initially make you very ill, and you likely wouldn't recover as you wouldn't acquire new ones and your body wouldn't function well without them.

    Don't take my word for it through. Talk to a real medical doctor about it.

    --


    Chas - The one, the only.
    THANK GOD!!!
  67. You want references? LNT isn't a useful model. by Behrooz · · Score: 1

    The difficulty being, your references are estimates based on what dose threshold?

    Well, you have to go three citations deep to reach the original model they're working off of. Which turns out to be a conservative application of Linear No Threshold. Which... isn't actually testable for any reasonable value of statistical significance over the populations they're attempting to apply it to.

    The BEIR VII risk models are a combination of excess relative risk (ERR) and excess absolute risk (EAR) models, both of which are written as a linear function of dose, depending on sex, age at exposure and attained age. The BEIR VII risk models were derived from analyses of data on the Japanese atomic bomb survivors for all cancer sites except breast and thyroid; for the latter, they were based on published combined analyses of data on the atomic bomb survivors and medically exposed cohorts.40, 41 To estimate risks from exposure at low doses and dose rates, a dose and dose-rate effectiveness factor (DDREF) of 1.5 was used for all outcomes except leukemia.

    The biological effects of acute radiation exposure >1 Gy are reasonably well-known, are the basis for the linear-no-threshold model, and completely inapplicable to this sitation, as even the most-exposed workers at the Fukushima accident site did even approach this dose, despite the multiple situations where workers were exposed to doses in excess of legal limits.

    The biological effects of short term dose less than 0.05 Gy or low-dose long-term exposure are also reasonably well-known, in that there is no statistically significant effect.

    Unless you're dealing with the aftermath of a global thermonuclear war, the linear-no-threshold model is nearly useless from an epidemiological perspective, and so are conclusions reached using it.

    --
    "We have to go forth and crush every world view that doesn't believe in tolerance and free speech." - David Brin
  68. Re:You fail statistics forever. Science too! by Anonymous Coward · · Score: 0

    Don't take my word for it through. Talk to a real medical doctor about it.

    This will get you no where, as most doctors are not familiar with this, and many that are will only know of industry standards based on LNT. I'm quite familiar with this considering I've spent more time in doctor's offices and hospitals than average, and doctors frequently start up conversations about my work in radiation safety. Even the x-ray techs and specialists can ask very basic questions and are not familiar with things outside of the calculations they are supposed to do and the exposures they are supposed to give as set by various standards and recommendations. Knowledge of arguments and issues with LNT is way more common with nuclear researchers, industry workers, and specific subsets of medical researchers.

    And none of this changes that you are making very specific claims for a situation that has never been created or tested. The closest done are a limited number of cell culture based studies, some involving mammalian cells (like this one), that don't have any difficulty culturing cells under very low radiation environments. They do see subtle changes, including impact on ability to handle later exposures to a decent dose of radiation or slight variation in biological stress indicators and growth rates. NONE of this suggests that you, nor the living things in your body, would just keel over dead, especially in the case of bacteria in your body because that is one of the cases where testing has actually been a bit more varied and thorough. Otherwise, talks of building an ultra low radiation laboratory for testing these effects on cultures and small animals is still in the talking stage.

    As said before, you are describing a rather specific consequence of something that has never been tested in the case of full animals, but has been studied in terms of bacteria and cell cultures. Even the most pro-radiation hormesis studies and results do not show that one would die without exposure to radiation. To say so is baseless and unscientific.

  69. Fossil fuels cut radiation exposure by mdsolar · · Score: 1

    You are mistaken. Uranium in coal ash is in the same concentration as in soil. There is no increase in background when the screening is the same. Fossil fuels do dilute carbon-14 in the atmosphere so our food is less radioactive as a result.

    1. Re:Fossil fuels cut radiation exposure by Anonymous Coward · · Score: 0

      Because about 90% of the coal burns away, the ash has about a factor ten concentration of whatever was in the coal (unless it ends up in the atmosphere). Concern is not so much about the uranium and thorium itself in such ash, but the daughter products which are more likely to leach into water, especially when used in construction projects. That is still minor to the 0.1-1% of fly ash that passes through scrubbers, which with ~40 million tons of collected fly ash a year in the US works out to about 4 million tons of uranium passing through scrubbers using conservative estimates. This wouldn't be so bad spread out, but it settles in a very uneven distribution.

    2. Re:Fossil fuels cut radiation exposure by mdsolar · · Score: 1

      Think for just a moment. Does coal have a high uranium concentration? It's mostly carbon.... When it burns it just reduces to the concentration of the soil of the forest that made the coal. Since the uranium prefers to stay at the bottom, the escaping fly ash has a reduced concentration compared to even that soil, so when it lands, it may even screen people from the soil background radiation below it more than that soil self-screens.

      There is quite a lot of uranium in the crust of the Earth, but we are not subject to radiation from any of it except from that mixed with a very thin layer at the surface. Fly ash is just like that layer or even less concentrated. So, nothing is really changed in terms of radiation from that.

    3. Re:Fossil fuels cut radiation exposure by Anonymous Coward · · Score: 0

      Does coal have a high uranium concentration?

      Instead of doing a thought experiment, various sources can be used to look up actual values (e.g. this has a collection of quote a few sources on different things). Typical soil is 0.3-10 ppm uranium+thorium. Typical coal is given as 0.2-12 ppm. So the original coal has closer to the same concentration as soil, and the resulting ash will concentrate that by a factor of 10. This isn't even getting into the extreme cases, where higher end of soil is about 100-200 ppm U+Th, while coal is being mined in places at 1000-2000 ppm U+Th.

      The problem is you can't just think of these elements as little marbles that get evenly scattered everywhere, as chemistry is involved. There are processes observed in peat beds where acidic compounds fix uranium and thorium in ways that cause them to accumulate there to levels above average from other soil types. And in that regard:

      Since the uranium prefers to stay at the bottom, the escaping fly ash has a reduced concentration compared to even that soil,

      You can find plenty of articles and sources around discussing the amount of uranium and other elements in the fly ash, or fly ash vs. bottom ash, where chemistry matters more than just the notion heavy metal should fall. For example from USGS, where note that the proportions in fly ash are in reference to original coal mass, so multiply by 10 to get proportions in ash. The fly ash in that case actually ends up with proportionally more uranium than the bottom ash that gets the remainder. If it worked as you suggested, you could have used your same reasoning to argue that mercury shouldn't be an issue from coal plants, because it would end up in the bottom ash only. Except that not only can it end up a lot more in the fly ash than the bottom ash (depends on plant though), some of it is elemental mercury that is not easily removed by wet scrubbers so you see coal plants adding halogens or catalysts specifically to remove the elemental portion of mercury so that it can be removed better by scrubbers, even though the initial coal starts out with levels similar to soil.

    4. Re:Fossil fuels cut radiation exposure by mdsolar · · Score: 1

      Confusing mercury chemistry with the essentially glassy behavior of uranium is a problem for you I think. As the USGS points out "The vast majority of coal and the majority of fly ash are not significantly enriched in radioactive elements, or in associated radioactivity, compared to common soils or rocks." http://pubs.usgs.gov/fs/1997/f... So, your claim of extra radioactivity as a result of coal burning would have to be the same as a claim of extra radioactivity from using a bulldozer on a construction site. Just moving stuff around with the same uranium content does not change the background level of radiation,

      , You've misread the table you cited. Notice that in the first column Fe is already greater than 10% yet it is a minor constituent in table 2.

    5. Re:Fossil fuels cut radiation exposure by Anonymous Coward · · Score: 0

      Confusing mercury chemistry with the essentially glassy behavior of uranium is a problem for you I think

      There was no confusion of mercury chemistry with uranium chemistry, as there was no equating of the two. The mention of mercury was merely another example of how you can't assume heavy metals will not end up in the fly ash. This had no bearing on the statement about uranium in fly ash, which is going off of the straight numbers. You can find the source for that USGS report which spells out the components for feed coal and both types of ash if you don't want to do the math yourself, and you can see there is a clear concentration factor of ten, goes from the amount in the coal that is slightly below average but in the range of typical soil values, to the fly ash which is six times larger than average uranium levels in soil. The statement about uranium getting fixed in peat is also a direct statement about uranium, and not from any analogy involving mercury.

      You can even look at specific survey maps of surface soil and rocks and find that the areas around Kentucky has average levels of thorium around 10 ppm, uranium at 3 ppm, with a few areas to the south having above average uranium still working out to ~5 ppm.

      Let's consider that for typical coal that is 75% carbon, that we'll ignore the carbon cycle beyond the fact that only half of the carbon produced ends up in the atmosphere, and we'll assume the Seuss effect is a full 30% dilution of carbon from the change in atmospheric carbon. Background carbon is about 200 Bq/kg, and so a kilogram of coal contributing to that dilution gave about 200*0.75*0.5*0.3=22.5 Bq/kg reduction of atmospheric C14. This is on par with the amount of radon at 20-30 Bq/kg in coal, so completely ignoring uranium or any other scrubbed materials, it is already pretty close to breakeven in terms of activity (considering Radon is a high energy alpha emitter and C14 is a lower energy beta, the difference in exposure between the two, even considering the committed dose of C14 being incorporated into the body, is huge). There are still several Bq of uranium and thorium that would get through 99% efficient scrubbers, and ~10 Bq/kg of potassium-40, another couple Bq/kg for polonium (the daughter products of uranium and thorium tend to be more radioactive than the uranium and thorium itself). At that point, you can just act as if every carbon atom that stays in the atmosphere from coal displaces C14 instead of just diluting it, and still get it being at best breakeven.

      And yes, the USGS says they are not significantly enriched. If you want to call that not significant, then the reduction of C14 would be considered insignificant also... especially considering you could remove all C14 from the environment and still make a less than 1% change to average human radiation exposure.

    6. Re:Fossil fuels cut radiation exposure by mdsolar · · Score: 1

      You seem to have the radon situation backwards too. "The emanation of radon gas from fly ash is less than from natural soil of similar uranium content. " http://pubs.usgs.gov/fs/1997/f...

      You are getting thing backwards and mixed up. You don't seem to be able to understand the sources you've cited. There are many reasons not to burn fossil fuels, but their use does cut radiation exposure. The nuclear industry has marred its credibility by claiming otherwise. It does the same thing when it claims there are no pipes under Vermont Yankee. You should come to understand that they can't be trusted. That they have been entrusted with the safekeeping of nuclear power plants is a very grave mistake.

    7. Re:Fossil fuels cut radiation exposure by Anonymous Coward · · Score: 0

      "The emanation of radon gas from fly ash is less than from natural soil of similar uranium content.

      That was irrelevant to the point I made, that the radon emitted by the coal that would have otherwise remained buried is now on the surface, and is comparable to a very crude overestimate of the carbon-14 dilution in the atmosphere. If you want to argue that the radon is insignificant, which is quite easy to do, then you would be arguing that the dilution of carbon-14 is also insignificant.

      Regardless, it quite clearly states in reference to soil of similar uranium content, which for many sources of coal ash, no such natural soil exist in the US.

    8. Re:Fossil fuels cut radiation exposure by mdsolar · · Score: 1

      Radon is important when it collects. Carbon-14 free carbon is important when it dilutes. You've gotten mixed up again. The dilution of carbon-14 is not about external radiation or even what we breath but about what ends up in our food in solid form. You should just admit that you are carrying water for a corrupt industry that is always trying to deceive the public and regulators. Your method of argument is part of that it would seem from the pattern of misrepresentation we are seeing here. Use of fossil fuels cuts radiation exposure. It has also prevented about 24 serious nuclear accidents, about 16 of which would have resulted in large exclusion zones like Chernobyl and Fukushima under typical accident rates and sizes. So, fossil fuels have also prevented increased exposure, though renewable energy can do the same job.

  70. About time by Anonymous Coward · · Score: 0

    "...I do environmental radiochemistry for a major nuclear utility.....But what do I know, I'm just some schmuck."

    If you work for a nuclear plant you are a liar and a denier and you should be muzzled to stop your evil views being expressed.

  71. perhaps, it happens to be in the middle of estimat by raymorris · · Score: 1

    I can't comment on the applicability of that particular model, but I did note that estimates using various models ranged from a few hundred to around five thousand. To a person wanting to reach useful conclusions, from unbiased information to the extent possible, the 1,000 estimate is therefore a reasonable estimate to reason from. To compare nuclear to coal, hydroelectric, etc. we really only need an "order of magnitude" estimate and a survey of all available models indicates that 1,000 is the right order of magnitude.

    If your purpose is advocacy, you can of course choose the highest or lowest estimate, whichever suits your agenda. However, doing that carries significant risk. Cherry-picking your data and models can put you in the same position that environmentalists were in during the 1970s - vigorously advocating for a policy that is detrimental to your goals. In the seventies and eighties, environmentalists chose the numbers they liked to suggest that nuclear is "bad". By doing so, they insured that the US would be powered primarily by burning fossil fuels for the forty years since. Had they tried to be objective in their analysis, they probably would have become supporters of nuclear as an alternative to fossil fuels forty years sooner, and we might not have any coal-fired plants today.

  72. Re:There is no "safe" amount of ionizing radiation by Anonymous Coward · · Score: 0

    It the nuclear plant fails, you wont clean it up. You will throw words at us.

  73. Re:There is no "safe" amount of ionizing radiation by khallow · · Score: 1

    You first have to show there's a problem with that.

  74. Re:perhaps, it happens to be in the middle of esti by khallow · · Score: 1

    we really only need an "order of magnitude" estimate and a survey of all available models indicates that 1,000 is the right order of magnitude.

    That's boilerplate for "I feel like 1,000 today". There's no reason to expect any of these models to be applicable. My view is that if your estimate is below any detectable threshold, then zero is as good a number as any.

  75. Re:Fossil fuel plants get to radiate us all they w by Maury+Markowitz · · Score: 1

    > What happens to our carbon footprint with all those electric cars powered from coal and natural gas?

    It goes down by about half. Even if the mix gets more CO2 intensive.

    http://matter2energy.wordpress.com/2013/02/22/wells-to-wheels-electric-car-efficiency/

    Don't wonder, educate yourself.

  76. Re:headed in the wrong direction...riiight! by Anonymous Coward · · Score: 0

    My radiation hormesis beads seem to work, no cold or flu for going on 10 years now.
    Search"Radiant Beads Healing Through Radiation Hormesis"

  77. Not enough! by Krigl · · Score: 1

    Those homes would have to be made of carefully chosen materials not to emit radiation themselves (no granite countertops, too) and, of course, no sleeping with a spouse or a baby in the same bed - human body is naturally radioactive, which brings us to the last point - we would have to be fed with isotopically purified food to get rid of all the K-40 and in the long run, maybe replace all the carbon in our bodies with a purified carbon than doesn't consist partially of radioactive C-14.

    Also, you missed a decimal, it's 2.4 mSv, not that the average means much, it's counted from about half mSv in some places and tens in others.

    --
    Troll 2.0 Fear my asocial networking!
  78. Re:Fossil fuel plants get to radiate us all they w by Lost+Race · · Score: 1

    It probably means that the maximum possible lifetime energy production of a photovoltaic panel is less than the energy required to manufacture and deploy it.

    I have no idea whether that is true, but I believe it is GP's meaning.