Abstract
The concentrations of radionuclides have been measured in water, sediments and biota from the Barents and Kara Seas. The survey was undertaken to identify the contribution to the anthropogenic radionuclides in the environment from nuclear waste dumped by the USSR in these areas from 1962 to the present day. The concentration in seawater was in the range 3·3–20·4 Bq m−3 for 137Cs, 3·0–12·1 Bq m−3 for 90Sr and 1·8–16·0 mBq m−3 for 239,240Pu. The concentrations in sediments (0–10 cm) were in the range 120–910 Bq m−2 for 137Cs and 2·5–135 Bq m−2 for 239,240Pu. The influence of radioactivity from dumped nuclear waste has not had a significant impact on the general levels of anthropogenic radioactivity.
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