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View Diary: Fukushima Fallout Radionuclides in Air, Rain and Food from San Francisco Bay Area (93 comments)

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  •  I don't see how there could possibly be (0+ / 0-)

    sufficient data to back this up:

    The behave conservatively which means that in transit from the coast of Japan they have been mixed and diluted such that horizontal gradients within the plume will be very small.
    This is the first time that anything like this has happened. There is no history to generate any data. I've seen at least one study that the concentrations and coherence of the radioactive elements in the Pacific has been much higher than expected.

    You'll remember the SPEEDI reports released from Japan at the beginning of the accident. Some stations showed almost nothing at all. Yet, researchers found that if you went a few meters from the station you could find massive accumulations.

    That's because of the way currents, air (and I'm sure ocean) work. It might well be that a station at Berkley registers low, but if the station were 5 miles up or down the coast you'd find very high readings.

    I'm not convinced that the coverage is sufficient. Certainly seeing 1, several (?4, 8, 12?), and 3 salmon being cited as if it could possibly be a meaningful sample emphasis the general untrustworthiness of the 'science.'

    Of course, TEPCO is cited as an example of a very very long, and almost ubiquitous, record of the industry's, and 'official sciences' endemic inability to deal competently or honestly.

    Actual Democrats: the surest, quickest, route to More Democrats. And actually addressing our various emergencies.

    by Jim P on Sat Mar 01, 2014 at 10:16:27 AM PST

    [ Parent ]

    •  Not the first time (3+ / 0-)
      Recommended by:
      Ozy, ebohlman, tarkangi

      The US spent a few years in the 1950s blowing the shit out of various mid-Pacific atolls with giant thermonuclear devices dumping tonnes of fission products into the ocean in the process. Scientists have had a lot of experience tracking fission isotopes in the Pacific in particular, levels more than ten times greater than the Fukushima releases will ever reach. Indeed most of the Cs-137 being detected on the west coast of America right now comes from those original nuclear tests, the expected pulse of fresh Cs-134 from Fukushima hasn't been detected yet.

       If the fallout from those tests had no perceptible effect on the west coast over the succeeding decades I suggest you don't panic over what the Fukushima releases will do.

    •  Ocean mixing is a well studied issue (3+ / 0-)
      Recommended by:
      MarineChemist, ebohlman, tarkangi

      because it is essential for climate change modeling, and also of significant interest for general oceanography. And, since it's something that can be easily measured around the globe, it's also well understood and characterized.

      There are dedicated groups at multiple universities and agencies that study nothing but ocean mixing, so it's known very well how particles distribute through ocean transport. There is nothing 'special' about radionuclides in this sense.

      see, e.g.

      The models calculating the transport of the radiation to the west coast include ocean mixing, and therefore can predict the dilution and distribution of the radionuclides along the west coast. Their accuracy can and will of course be checked by measurements at multiple locations.

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