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Caffeine Level In Sea Causes Concern

DarkHand writes "Researchers at the Norwegian Institute for Air Research (NILU) have spent three years looking for trace remains of pharmaceuticals in drainage water and the sea near Tromsoe in northern Norway. The project has focused on 16 substances and a high concentration of caffeine was one of the surprising finds. Need a lift in the morning? Have a refreshing glass of seawater!"

17 of 72 comments (clear)

  1. Re:Caffeine is bad today by ObviousGuy · · Score: 5, Funny

    Not to me. I've been drinking a lot of coffee and pissing in the fjords.

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  2. In other news... by arrow · · Score: 3, Funny

    Water Joe files suit aginst Norway for infringement.

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  3. Speaking for myself by squiggleslash · · Score: 5, Funny
    As a scuba diver, I'm somewhat concerned about this.

    Contrary to popular myth, most sharks one comes across in the ocean are docile creatures who just want to be left alone and will occasionally stop resting in order to find something to eat - fish, generally, or surfers if they decide the surfers look a little too much like seals. (No, I'm not making this up.) I "swim with" sharks all the time (I put that in quotes, it's not exactly the same as, say, swimming with dolphins, but the point is man and shark can inhabit the same parts of the ocean without one trying to devour the other, or the need for shark cages, etc. Now, Great Whites are another matter, but I don't like off the coast of Australia.)

    Now, if caffiene levels in the ocean rise, what's going to happen to the sharks? Are they going to ever be able to get any sleep? Is their judgement going to be further impaired - I mean, they already confuse surfers with seals, are they likely to confuse divers with some sort of fish? Are they going to be constantly tired, irritable, yet alert?

    Or will the effects be even more dramatic: will I go diving only to see sharks outputing hundreds of lines of poorly written but amazingly creative C code, at two in the morning?

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    1. Re:Speaking for myself by Smidge204 · · Score: 4, Interesting

      Mmm code sharks...

      Anywho... I'm not aware of any study ont he effect of caffine on sharks - or any sea life - but I'm sure it exists (Or will shortly!).

      Every species reacts to chemicals in different ways. Hell, individuals of te same species react differently! I wouldn't automatically assume that caffine will have the same effect on sharks as it does on humans.

      Good example? Chocolate. Cocoa is very poisonous to cats and dogs (Specifically, the chemical Theobromine). Most humans can eat it with no ill effects. Similar items include garlic, onions, and macadamia nuts.

      Oddly, cows enjoy chocolate as well. Can't remember where I saw it, but I think there's a place in Australia that feeds their dairy cows "reject" (read: mangled but otherwise edible) candy, which they buy from a factory by the truckload. If I recall, sometimes the flavor can actually leech into the milk.

      Moral of the story is: Caffine might not have any effect on sharks, or only for some species of shark, or it might be toxic. Who knows?
      =Smidge=

    2. Re:Speaking for myself by JGski · · Score: 4, Informative
      Sorry, the discovery of pharmaceutical micro-pollution is several years old. It's quite real and quite man-made. I'm dubious of man-made greenhouse but this is pretty linkable. In temperate climates there aren't any natual caffeine sources. Even in tropical climate you have to be downstream from a cocoa plantation, etc. The original paper and other articles about this new paper mentioned ibuprofen, antidepressants, heart and cholesterol medicines. The issue is that:
      • most people don't realize that most medicines pass through the kidneys unmetabolized
      • water treatment doesn't remove these chemicals
      • micro-pollution such as estrogens are known to affect fertility and fetal development of everything from fish to mammals, and probably also humans
      Previous studies have shown similar findings in freshwater lakes and rivers, with similar medicines appearing including:
      • Caffeine levels in freshwater rivers and lakes followed diurnal cycles peaking in sewage plants after mid-morninng bathroom breaks, and hours later rising in processed effluent in open water - caffeine is passed almost entirely unmetabolized.
      • synthetic estrogen and progesterone from oral contraceptive have been found in water supplies and may be factors in amphibian and fish population declines - perhaps also a factor, combined with pseudo-estrogens like phthalates (you like "new car smell"?), etc., in the 50-year decline in human sperm count levels in industrialized nations
      • many drugs are synthetic with persistence comparable to DDT or Chlordane - they do not breakdown
      • if micro-pollutants are bioactive in other species or in humans, they may well be affecting us already - what happens when we are all receiving active doses of heart medicine, etc., all our lives from our own water supply?
    3. Re:Speaking for myself by dasunt · · Score: 4, Interesting

      The parent poster writes:
      Every species reacts to chemicals in different ways.

      And then he goes on to talk about chocolate as an example.

      Here's a better example, IMHO: Spiders on Caffiene and Other Drugs

    4. Re:Speaking for myself by Alomex · · Score: 3, Informative

      and macadamia nuts.

      In fact, macademia nuts are generally poisonous to humans as well. Every so often a mutated macademia tree produces non-poisonous nuts and those are the ones we groom and harvest from. (I'm not making this up).

  4. Dude, dude, that's the wrong project by Anonymous Coward · · Score: 3, Funny

    Researchers at the Norwegian Institute for Air Research have spent three years looking for trace remains of pharmaceuticals in drainage water and the sea...

    And now where the hell did the taxpayer kronas that I spent on air research go?

  5. DON'T TRY IT by TwistedGreen · · Score: 4, Funny

    Need a lift in the morning? Have a refreshing glass of seawater!

    Despite what DarkHand says, THIS IS NOT A GOOD IDEA. Please DO NOT try this. The high concentrations of sea salt and other dissolved minerals destroy the benefits found in drinking ordinary water, making the drinker at risk of salt poisoning and even dehydration!

    I can't believe the editors are allowing such dangerous advice to be posted on Slashdot, of all placed!

    1. Re:DON'T TRY IT by Molina+the+Bofh · · Score: 3, Funny

      Or, even worse, the high concentrations of sea salt and other dissolved minerals might destroy the effects of caffeine.

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  6. It's just not fair... by skaffen42 · · Score: 3, Interesting

    Those damn Scandinavians have everything. I mean I have just finished reading the story about the Swedish chick who managed to solve (part of) Hilbert's 16th problem. And amazingly for a female math geek she is actually not bad looking. If she was from any other part of the world she would have looked like my grandfather, only uglier.

    And now the Norwegians get CAFFEINATED SEAWATER! Is is just me or is there something wrong with this picture?

    OK, so at least they are sharing Linus with the rest of us, but still...

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  7. pharma. micro-pollution vs. industrial waste by js7a · · Score: 4, Insightful
    It's important to keep in mind that while pharmaceuticals warrant monitoring, we know for a fact that other obvious pollutants are much worse. For example, cadmium leechage from automobile systems kills orders of magnitude more fish of all kinds than anything estrogens can possibly do.

    The sad fact is that the vast majority of the remaining dangerous pollutants are attributable to either coal-fired power generation or automobile use, which are both sacred cows the world over.

  8. The next step by kinnell · · Score: 3, Funny

    Now we just have to find a way of extracting it, and Europe will no longer be at the mercy of the coffee growing countries

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  9. Re:Question... Yes & No by G4from128k · · Score: 4, Informative

    Would a desalination plant remove the caffine?

    Yes and no. Desalination by reverse osmosis or distillation would remove the caffeine (and many other pharmaceutical byproducts) from sea water when making drinking water. But the concentrated salt water dumped out of the desalination plant would still contain these pollutants.

    Standard treatment plants used for making drinking water from freshwater would probably NOT remove caffeine or other pharmaceuticals. At best, the chlorination/oxygenation/UV purification process might degrade the pharma chemicals. At worst, these purification processes might convert the pharma chemicals into even more toxic analogs of the chemicals.

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  10. Re:Question... Yes & No by 3waygeek · · Score: 4, Interesting

    Reverse osmosis doesn't necessarily remove everything; the city of Santa Barbara, CA built a RO-based desalination plant in the early 90s, at a cost of roughly $40 million. When they fired up the plant (spring of 92, IIRC), the water it put out still tasted a bit of the sea, according to most observers.

    However, during the plant's construction, the drought that had motivated the project had subsided. So after a few weeks of operational testing (i.e. none of its output went into the distribution system), the plant was mothballed. AFAIK, it's never been started up since.

  11. Not Necessarily a Direct Problem by bubblewrapgrl · · Score: 4, Informative

    One researcher in the article is quoted as saying, We have almost no information about what kind of problems caffeine can cause in nature. It is a poison and at very high concentrations it can affect the nervous system. We don't know the kind of environmental effect caffeine can have on the ecosystem and this is something that should be thoroughly investigated .

    Based on what I know about biochemistry, this isn't necessarily going to be a big problem for humans. Assuming that the concentration of seawater is 100 micrograms (.0001 g) per liter and the lethal dose (LD) of caffeine is 4 grams in humans, one human would have to drink 40,000 litres of seawater to reach the lethal dose. That excludes the decomposition of caffeine in the body that would occur while drinking that much seawater.

    Of course, there could be problems with biomagnification. If fish or other sea animals can't break down the caffeine, it may stay absorbed in their fat. Then, people who eat those sea creatures will have much larger of doses of caffeine at one time.

    Personally, I wouldn't be concerned until they take into consideration all of the other factors that are involved. There are high concentrations of many molecules in seawater, but that isn't necessarily a problem.

  12. Re:Sharks don't really sleep by Russ+Steffen · · Score: 3, Interesting

    That's only true of the primitive sharks, like the great white. More modern sharks like the leopard shark have gills that function fine at rest.