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Survey of radionuclides in foods, 1961-77.

Abstract The radionuclides in the foods monitoring program initiated by the Food and Drug Administration in 1973 was expanded in 1975 to include the analysis for fission products in selected foods originating from the vicinity of nuclear power stations. Results from the analysis of 90Sr and 137Cs in the foods survey for the years 1961–77 suggest that the levels of these fission products may represent “baseline” activities in foods. The intake levels of these radionuclides are within the Radiation Protection Guides (RPG) recommended by the Federal Radiation Council (FRC). The levels of tritium in foods from eight nuclear power station areas were less than the 1973 national average for tritium in drinking water and well below the EPA limit. The 137Cs and 90Sr levels in samples from four of the reactor sites were comparable with levels of these radionuclides found in total diet samples during the '60s, collected from areas not associated with nuclear reactors.