Air monitoring.
10 C.F.R. § 835.403
in effectEffective: 2024-07-01(a) Monitoring of airborne radioactivity shall be performed:
(1) Where an individual is likely to receive an exposure of 40 or more DAC-hours in a year; or
(2) As necessary to characterize the airborne radioactivity hazard where respiratory protective devices for protection against airborne radionuclides have been prescribed.
(b) Real-time air monitoring shall be performed as necessary to detect and provide warning of airborne radioactivity concentrations that warrant immediate action to terminate inhalation of airborne radioactive material.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-10.xmlFetched: 7/26/2026
