01297nam 2200385 450 991070733860332120160725094723.0(CKB)5470000002464133(OCoLC)953967186(EXLCZ)99547000000246413320160725d1992 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierNew exposure limits for airborne uranium and thoriumWashington, D.C. :United States Nuclear Regulatory Commission, Office of Nuclear Materials Safety and Safeguards,[1992]1 online resourceInformation notice ;92-34Title from title screen (viewed on July 25, 2016)."May 6, 1992."Radioactive pollution of the atmosphereUnited StatesUraniumThoriumRadioactive pollution of the atmosphereUranium.Thorium.U.S. Nuclear Regulatory Commission.Office of Nuclear Material Safety and Safeguards,GPOGPOBOOK9910707338603321New exposure limits for airborne uranium and thorium3275982UNINA