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32,000 Workers At Fukushima No. 1 Got High Radiation Dose, Tepco Data Show (japantimes.co.jp)
mdsolar writes: A total of 32,760 workers at the Fukushima No. 1 nuclear plant had an annual radiation dose exceeding 5 millisieverts as of the end of January, according to an analysis of Tokyo Electric Power Co. data. A reading of 5 millisieverts is one of the thresholds of whether nuclear plant workers suffering from leukemia can be eligible for compensation benefits for work-related injuries and illnesses. Of those workers, 174 had a cumulative radiation dose of more than 100 millisieverts, a level considered to raise the risk of dying after developing cancer by 0.5 percent. Most of the exposure appears to have stemmed from work just after the start of the crisis on March 11, 2011. The highest reading was 678.8 millisieverts.
how about the rest of you
Sorry, no. The messenger has using Slashdot to push anti-nook FUD for years. The well is poisoned. Fuck him and his agenda.
Maw! Fire up the karma burner!
https://hps.org/publicinformat...
It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
Relevant XKCD for comparisons of radiation levels:
https://xkcd.com/radiation/
Duration of exposure matters, of course, but one should always keep in mind this rule: one sievert is dangerous. It's not always fatal, but sometimes it is. Some corollaries:
The fellow who got dosed with nearly 700 mSv has my sympathy and gratitude. The mantle of leadership and duty falls where it falls, and we all owe a debt to the ones who bear the burden.
I'm shrugging over here. This reads like a feel good fluff piece in a scary voice.
Its not even news. A bunch of workers at the plant got some very low exposure to radiation, on the order of what a pilot gets in his/her job. Throw in some minute mention of increase in cancer risk, and you have the recipe for a FUD meal served up for the uninformed.
The wording of the summary is a good indication of not even knowing the information.... "a level considered to raise the risk of dying after developing cancer by 0.5 percent". So, IF you develop cancer, your chances of death go up by 1/2 a percent? These are the front line workers, and there is essentially no danger. And this is from the same people telling us what a human health disaster Fukushima is? They wont' even try to reconcile that.
But, but, but... OMG RADIATION!!!!!!!!
For Christ's sake. 174 people got enough radiation that 1:200 people might die of leukemia.
No, not 1/200 people. The risk of dying of cancers of the types you get from exposure is about 1 in 100 or 1%. So, if that risk in increase by 0.005 percent, the elevated risk is now .01 x 1.005 = 1.005%. Which means 1 added cancer death maybe in 20,000 exposures.
Several of them will get cancer anyway. We expect one extra to get cancer.
But even that is bullshit, since that is based on a model called "Linear, No Threshold" or LNT.
At large doses, ibuprofen will kill you. I've got a bottle of 160 pills in my desk drawer, which should be plenty. According to LNT, since 160 pills at once into one person would cause one death, one pill each into 160 people would also cause one death. So if I gave one pill, one time, to 160 of the Fukushima workers, one more than normal of them would die of liver failure eventually.
Where the analogy breaks down is that in reality, everyone would be getting 1 to 10 ibuprofen pills per day from their environment, and the people living and working in places with higher natural doses get less liver failure. (See hormesis)
See that "Preview" button?
You may want to look up the definition of Sv. You are indeed the ignorant one.
A CT scan is 30mSv. Also, a CT scan is a single large dosage instead of a low dosage over a long period of time.
No it's not. Your information is extremely outdated. The highest dosage you get from a CT scan is for cardiac function imaging. It's because you need to look the heart during several different points through the cardiac cycle.
On a typical 64-slice CT scanner the dosage is 5 to 10mSv for a cardiac function scan. That's going to be the highest dosage as any scanner with less than a 64-slice detector array will give unusable images and a very high radiation dosage. Almost no one is using these for cardiac imaging. A 64 slice CT scanner is very versatile, but not good for cardiac imaging.
Most hospitals are using 256 and 320 slice CT scanners for cardiac imaging currently. And 640 slice scanners are now out in the wild. Rather than needing to spin the array in a continuous helical motion, the high slice scanners can image the entire heart in a single rotation. A 256 or 320 slice scanner can do a cardiac scan with 1 to 2mSv exposure.
There's also dose reduction software. It allows the radiation dosage to be lower and give lower quality images, then clean them up in software after the scan. If you're getting a CT scan for anything other than the heart and it's going to be higher than 1mSv, go somewhere else. And unless there is some reason you need to have the scan done in a CT, such as a non-MRI safe pace maker or other hardware, there's very little need to have this type of scan done. Other than a very specific type of scan, no CT scan should be above 1 mSv.
good for the current two generations. For the next 20000
Thats kind of backward. The biggest hazard after Fukushima was iodine-131, which has all gone already. next, the caesium-134 with a 2-year half-life will soon be gone. Caesium-137 is most of what remains, and has a 30-year half-life. So the atoms will be around up to 10 or 20 generations, but it is highly water soluble, so ...
All things leak, diffuse and mix with each other.
Yep, the small proportion of remaining caesium will be long washed away to become an insignificant part of the background before the "current two generations" are gone.
20,000 gen? Pure propaganda. Even now, the radiation from plutonium etc around Fukushima is miniscule.
https://en.wikipedia.org/wiki/...