Gross radioactivity in surface waters of the United States August 1971.
D005618:Fresh Water / Q000032:analysis; D009519:New York City; D011834:Radiation Monitoring; D013325:Strontium Isotopes / Q000032:analysis; D014316:Tritium / Q000032:analysis; D014481:United States; D014878:Water Pollution, Radioactive; D014887:Weather
D013325:Strontium Isotopes; D014316:Tritium