TABLE 1 RADIOISOTOPES OF INTEREST FOUND IN ENIWETOK ATOLL SOIL Radioisotope Source Americium-241 Plutonium Contamination Plutonium-240 Plutonium Contamination Plutonium-239 Plutonium Contamination Plutonium-238 Plutonium Contamination Uranium-238 Unburned Weapon Fuel Uranium-235 Unburned Weapon Fuel Bismuth-207 Fission Product Europium-155 Fission Product Europium-154 Fission Product Europium-152 Fission Product Samarium-151 Fission Product Promethium-147 Fission Product Cesium-137 Fission Product Antimony-125 Fission Product Rhodium-102 Fission Product Strontium-90 Fission Product Nicke1l-63 Fission Product Cobalt-60 Activation Product Iron-55 Activation Product Carbon-14 Activation Product Zurn Tritium Soil Act. Metal or Scrap Debris Water Material* D, S$