The concentration of plutonium in man has presumably been subject to a continuous increase because of the presence of plutonium in the environment. Since 1959, selected tissues from deceased humans have been examined for the presence of plutonium. Lung and liver tissues from 60 non-occupationally exposed cases were studied. These cases represent deaths occurring between 1960 and 1971. The analyses suggest average concentrations of 0.5 pCi/kg of lung and 0.7 pCi/kg of liver (wet weight). The relationship of these data to the age, year of death and residential site are shown. The correlation between the concentrations of plutonium in the various tissues are discussed.
©1972Health Physics Society