Plutonium and strontium-90 in precipitation, August 1966 through March 1967.
D000398:Air Pollution, Radioactive; D011005:Plutonium / Q000032:analysis; D011834:Radiation Monitoring; D013325:Strontium Isotopes / Q000032:analysis; D014887:Weather
D013325:Strontium Isotopes; D011005:Plutonium