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Radiation Exposure Limits

Agency Standard Applies To
U.S. Environmental Protection Agency (EPA) 15pCi/L Drinking Water - Alpha particles
EPA 4mrem/year Drinking Water - Beta Particles & photon emitters
EPA 80pCi/L Drinking Water – Cesium 134
EPA 200pCi/L Drinking Water – Cesium 137
EPA 0.1mSv Air
Food & Drug Administration (FDA) 1,200Bq/kg for cesium Food
FDA 33,000pCi/L for cesium Milk
FDA 170Bq/kg for strontium Food
FDA 4,400pCi/L for strontium Milk
Nuclear Regulatory Commission (NRC) 50mSv Annual occupational exposure limits for radiation worker
NRC 0.1rem (1,000mSv) Annual dose limit not to be exceeded for public
International Commission on Radiological Protection (ACRP) 1mSv Recommended annual dose limit for general public
Occupational Health & Safety Administration (OSHA) 50mSv for males>18yr; 5mSv for pregnant women Annual occupational exposure limits for workers
American Conference of Industrial Hygienists (ACGIH) 20mSv Threshold Limit Value (TLV) for workers over 5 years

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