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