Defense Civil Preparedness Agency closed it's 1973 Attack Environment Manual section on post-fallout shelter life with this very...optimistic...cartoon.pic.twitter.com/ieKYsiWsxa
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Defense Civil Preparedness Agency estimate of notional fallout dosage curves from a Soviet Attack in 1973.pic.twitter.com/j61zLbxtqn
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Note that this is a dose *rate* after 1 week. To give you a sense of what this means, if your dose is 1 R/hr at one week, it means that the initial source intensity was around 1000 R/hr at 1 hr. It means if you were without any shelter, you'd have picked up 3,600+ R in that time.
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So in the 10 to 50 rad zone, after a week... Would any multicellular life survive in those zones?
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So working backwards, for 10 R/hr after one week, that's an initial activity of something like 8,000 R/hr. For 50 R/hr, that's around 35,000 R/hr. Accumulated activity on the ground is 55K-242K R for those values. So... I'm gonna go with "probably not."
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63K R will kill all plants, full stop. At 50 K you might have some really scrubby things. Trees die much earlier than those levels. Maybe some microscopic stuff can take that level? But complex organisms, I don't think so.https://twitter.com/wellerstein/status/352145474737803264 …
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(Which is to say, you'd be dead after 30 minutes at 1000R/h.) 1 R/hr is survivable if you survive all of the hours that lead up to it...
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