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Uh, OK, I guess. It decays, so you would think it would go down. And their threshold for contamination is radioactivity equivalent to that from 1 gram of radium per square kilometer, or distributing a single ounce of material over 11 square miles. Nice for a science experiment on the sensitivity limits of mass spectrometry, but inconsequential for public health.
Filed under Chernobyl, Environment, Fun With Statistics, International, Physics, Safety
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