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by Symmetry
2318 days ago
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The general rule of thumb is that the radiation in the fallout from a bomb goes down by a factor of 10 for every factor of 7 the time since the detonation increases. So it's 10 times less radioactive after a week as it was after a day. 100 times after a month and a half, 1000 times less after a year, etc. Under the linear-no-threshold dose model we'd expect several death from fallout induced cancer per test. But on the other hand we know that the linear-no-threshold model is false. If you give some fruit flies a 50 REM dose of xrays all at once they get cancer. If you give them 50 REMs spread out over the course of a month they don't. But we don't really know what the actual model is very well so that's not a risk I'd be happy to take. |
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