title: Radioactivity in airborne particulates and precipitation.
mesh_terms: D000398:Air Pollution, Radioactive / Q000032:analysis*; D004583:Electrons; D004781:Environmental Exposure; D009656:North America; D011834:Radiation Monitoring; D011847:Radioactive Fallout; D011851:Radioactivity; D013020:South America
chemical_list: D011847:Radioactive Fallout