Comparative analysis of Pu body burdens, induced by releases from atomic enterprises and global fallouts. Cancer risk, connected with plutonium accumulation

The paper presents: results of the analysis of dynamics of body burdens of Pu in adult inhabitants of Chelyabinsk-65 (not occupationally exposed) and of the Gomel region for 1990-1991. The data are based on radiochemical analysis of Pu in human organs and tissues. Comparison with the publicated data on global Pu and our date for five human autopsies revealed, that values of Pu body burdens in Chelyabinsk-65 residents were 30 times higher than global levels and depended on the period of residence in the town. The Pu body content in the Gomel region in 4-5 years after Chernobyl is, on average, 3-4 times as much as global levels. Activity of PU-238 in various organs is 4,7-26.0% (on the average 13.5±5.0%) of alpha-activity of Pu-238+Pu-239,240. Expected number of cancer induced by incorporated plutonium is approximately the same for two population groups, despite of their difference in number and doesn't differ of global level more than one order