Europium-155 in debris from nuclear weapons.
D000398:Air Pollution, Radioactive; D002564:Cerium Isotopes / Q000032:analysis; D003718:Denmark; D005063:Europium / Q000032:analysis*; D005857:Germanium; D011847:Radioactive Fallout; D011874:Radiometry; D013325:Strontium Isotopes / Q000032:analysis
D002564:Cerium Isotopes; D011847:Radioactive Fallout; D013325:Strontium Isotopes; D005857:Germanium; D005063:Europium