Levels and conditions of accumulation of the anthropogenic radionuclides in the Kola and Motovskii Bays

Levels and regularities of the anthropogenic radionuclides distribution in the Cola and Motovskii Bays of the cola semi island are determined oceanographic conditions of transfer and accumulation of radioactive substances of local origin are studied. The bottom sediments almost everywhere in the Cola Bay contain cobalt at the level of 0.5-1.0 Bq/kg and cesium-137 from 1-9 up to 20-24 Bq/kg. About 80-90% plutonium-239,240 and cobalt-60, dumped at sea, is disposed of in the bottom sediments near powerful sources. There exists certain danger for ecosystems and population of the whole region