Definition of Airborne radioactivity area
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Airborne radioactivity area Definition from Science & Technology Dictionaries & Glossaries
NRC Nuclear Energy Glossary
A room, enclosure, or area in which airborne radioactive materials, composed wholly or partly of licensed material, exist in concentrations that (1) exceed the derived air concentration limits or (2) would result in an individual present in the area without respiratory protection exceeding, during those hours, 0.6 percent of the annual limit on intake or 12 derived air concentration-hours (see 10 CFR 20.1003).A service to the public by The U.S. Nuclear Regulatory Commission (NRC).