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Typical Radiation Doses
Max. permissable 0.1 per year/10 mrem
Actual 0.001 to 0.01 mSv/.1 to 10 mrem
In the vicinity of nuclear power plants
0.2 to 1 mSv per year/20 to 100 mrem
Construction materials in buildings
Mostly 1 to 3 mSv per year/100 to 300 mrem
In extreme cases up to 20 mSv/up to 2,000 mrem
Background radiation
Average 2 to 3 mSv per year/200 to 300 mrem
Variation range 0.2 to 500 mSv/20 to 50,000
mrem
Radon gas in houses
Up to 20 mSv per examination/up to 2,000 mrem
Major x-ray examination
About 0.1 mSv per examination/10 mrem
Variation range 0.05 to 5 mSv/5 mrem to 500
mrem
Chest x-ray examination
Average 1 to 3 mSv per year/100 to 300 mrem
Variation range 0 to 20 mSv/0 to 2000 mrem
Exposed workers