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Ah, here I found more limits and explanation.

The 4 millirem per litre per year limit is said to be equivalent to 3 pCi/l (0.1 Bq/l) of continuous exposure. This appears to be the limit referenced by the source, but they forgot that this applies only to an average for a whole year. Meanwhile, the NRC has a limit of 1×10^-6 µCi/ml (in effluent water), that's 1,000 pCi/l if I made all conversions correctly.

(By the way, why can't American government authorities use proper SI symbols? Litre with capitalised L!?...)

*Lunatic*, n.
One whose delusions are out of fashion.

by DoDo on Tue Apr 12th, 2011 at 12:41:51 PM EST
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