Scientists Track Radioactive Iodine in New Hampshire from Japan Nuclear Reactor Meltdown
http://www.sciencedaily.com/re…
Testing in New Hampshire’s Mink Brook watershed during March through May 2011 resulted in calculating radioactive iodine deposition in the soil at a total amount around 6,000 atoms per square meter. Dartmouth research associate Joshua Landis commented that “at these levels, it is unlikely that this is going to cause measurable health consequences.” The amount in stream sediments was double the amount in soil but should be reduced by river and stream dilution.
This radioactive waste from Fukushima consists of iodine-131, “highly radioactive, acutely toxic” with a half-life of about 8 days, and iodine-29, less radioactive but with a half-life of 15.7 million years. “Due to its long half-life and continued release from ongoing nuclear energy production, [iodine-129] is perpetually accumulating in the environment and poses a growing radiological risk,” the authors of the Proceedings of the National Academy of Sciences report point out. A nuclear reactor produces 3 parts iodine-131 to one part iodine-129. “Once the iodine-131 decays, you lose your ability to track the migration of either isotope.”
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