10 minutes next to the reactor core when Chernobyl exploded - 50 Sv, Average annual background radiation in UK - 2·2 mSv, Annual effective dose limit for member of the public - 1 mSv, Yearly does from natural potassium in the body - 390 μSv, Annual effective dose limit for radiation worker - 20 mSv, Cause illness if absorbed all at once - 1 Sv, Living in a stone or brick building for a year - 70 μSv, Sleeping next to someone - 0·05 μSv, Dental x-ray - 5 μSv, Lowest 1 year dose clearly linked to increased cancer risk - 100 mSv, Results in death even with treatment - 8 Sv, Eating a banana - 0·1 μSv,

leaving cert physics How much radiation?

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