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Thread: Blue fin tuna- Radiation and contamination

  1. #1
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    Default Blue fin tuna- Radiation and contamination

    Korrie Broos

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  2. #2
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    While this is undoubtedly a huge disaster, this "New Scientist" report provides a bit more balance to the issue:
    http://www.newscientist.com/article/...l#.Uh0Yzj_uiHM

    An extract:
    "Ken Buesseler of the Woods Hole Oceanographic Institution in Massachusetts says the Kanda estimate is probably the best he is aware of, and closely matches figures released on 21 August by Tepco, of 0.1 to 0.6 TBq per month for caesium-137 and 0.1 to 0.3 for strontium.

    He points out that the north Pacific contains an estimated 100,000 TBq of caesium-137 from H-bomb testing in the 1960s, so the fallout from Fukushima is adding only a fraction of that. Total discharges from the Sellafield nuclear plant in the UK released 39,000 TBq over 40 years, he says.

    Buesseler says that during his own sampling survey in waters 30 to 600 kilometres from Fukushima in June 2011, three months after the meltdown, the highest levels he found were 3 Bq of caesium-137 per litre of seawater. By comparison, the natural weathering of rocks results in about 10 Bq of radioactive potassium-40 making it into each litre of seawater."
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