Cesium-137 biospheric contamination from nuclear weapons tests.
D002586:Cesium; D002588:Cesium Radioisotopes; D006801:Humans; D054043:Nuclear Weapons; D011847:Radioactive Fallout; D011851:Radioactivity
D002588:Cesium Radioisotopes; D011847:Radioactive Fallout; D002586:Cesium
CESIUM/radioactive; RADIOACTIVE FALLOUT