Abstract
The results of comparative tests of the FN sorbent based on iron diferrocyanide with a matrix base form of fibrous carbon with known commercial and laboratory analogs are presented. The possibility of using this sorbent for selective removal of 137Cs and 60Co for large volumes of sea water and producing fast methods of analysis is examined. Information is presented on the content of technogenic radionuclides in sea water in regions of disposal of radioactive wastes in the Sea of Japan and in the region of the accident on a nuclear powered submarine. It is shown that the disposal of radioactive wastes in the Sea of Japan did not change the background radioecological conditions. The radioactivity of sea water at the epicenter of the accident in Bukhta Chazhma is a consequence of the accident and is due to 60Co; the presence of 137Cs and 90Sr is due to global fallout. The concentration of technogenic radionucldes in water and hydrobionts does not exceed admissable norms. Consumption of up to 100 kg/yr of marine products does not increase dose loads above the limit of the yearly individual lifetime risk established for the public and corresponds to a low radiation danger.
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