Accumulating ability of Black Sea fishes as for natural radioelement Po

The first determination of the natural radioisotope 210Po concentration in the Black Sea fishes of different species collected in the coast zone and Sevastopol bays during May-June 1999 is presented. Accumulative ability depends on the fish species by increasing from bottom and demersal to pelagic ones. The highest 210Po concentrations were determinated in the Black Sea anchovy and sprat. The role of viscera and liver in the 210Po accumulation by Black Sea fishes is shown