title: Krypton-85 in air, July 1970 to December 1972.
mesh_terms: D000398:Air Pollution, Radioactive / Q000032:analysis*; D004781:Environmental Exposure; D007726:Krypton / Q000032:analysis*; D011834:Radiation Monitoring; D011868:Radioisotopes / Q000032:analysis*; D014481:United States
chemical_list: D011868:Radioisotopes; D007726:Krypton