title: Tritium contamination from fallout.
mesh_terms: D002681:China; D004391:Dust / Q000032:analysis; D011847:Radioactive Fallout / Q000032:analysis*; D014316:Tritium / Q000032:analysis*; D014861:Washington
chemical_list: D004391:Dust; D011847:Radioactive Fallout; D014316:Tritium