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Fukushima Radiation Found in
US Milk
Fukushima Nuclear Crisis
Magnetic Field Detector
April 16, 2012
Milk in San Francisco is being tested at
radiation levels that are double the maximum amount allowed
by the EPA, apparently as a result of radioactive cesium
reaching California from the Fukushima disaster.
According to Energy News, three recent milk test
results on cartons of milk with "best by" dates of 3/12,
4/9, and 4/16 were shown to have amounts are so small that
it would require drinking over tens of thousands of liters
of milk to receive the small dose that one receives from a
cross-country airplane flight. These isotopes can still be
detected in milk because they have long half-lives (2 years
and 30 years, respectively) and therefore trace amounts will
remain in the grass and hay that the cows feed on.
When scientists wanted to compare the effects of
the
Fukushima nuclear meltdown with the one at Chernoybl in
1986, they decided to start with the birds. Although far
apart, in different countries, both areas are similar
ecologically.
They were surprised to find that, in Chernobyl,
some species seemed to develop a tolerance for radioactivity
over time. They found that, as radiation levels in each area
rose, the average number of birds dropped by almost a
third--birds literally fell out of the sky. But they found
that the same level of radiation was associated with twice
as large a drop in bird numbers in Fukushima as in
Chernobyl, where many birds had obviously managed to survive
a high level of background radiation. What's their secret?
Why this happened isn't known, but the
evolutionary process is understood. The Economist reports
that: "Evolution has already been at work near Chernobyl,
killing off individual birds that cannot cope with the
background radiation and allowing the genes of those that
have some tolerance to be passed on. The birds at Fukushima
are only beginning to face the evolutionary challenge of
living in a radioactive world."
Meanwhile, a new study reports that the
radiation plume Fukushima hit the US with the greatest
exposure in central and southern California, and that
seaweed from that area tested over 500% higher for
radioactive iodine-131 than anywhere else in the US and
Canada.
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