40 CFR 61.22 : Protection Of Environment (§ 1.1 To Parts 1851-1899) — (§ 61.01 To § 62.16050) — Environmental Protection Agency (Continued) (§ 61.01 To § 62.16050) — Air Programs (Continued) (§ 61.01 To § 62.16050) — National Emission Standards For Hazardous Air Pollutants (§ 61.01 To Appendix E To Part 61) — National Emission Standards For Radon Emissions From Underground Uranium Mines (§ 61.20 To § 61.26) — Standard.
4 Aug 2016
Emissions of radon-222 to the ambient air from an underground uranium mine shall not exceed those amounts that would cause any member of the public to receive in any year an effective dose equivalent of 10 mrem/y.