О самоочищения Балтийского моря от радионуклида 137Cs в 1997-1999 г.г

Abstract

variations of radionucide 137Cs consentration in the southeastern part of the Baltic sea were investigated over the period 1997-1999 following the Chernobyl Power Plant accident. The rate of self-cleaning proved to be very slow. Theoretic results shower that in 1999 the average concentration had to be about 50-60 Bq/m³. Sometimes mentioned concentrations were observed. In some cases higher concentrations were registared. No correlation was obtained between 137Cs concentration, salinity and temperature in the surface waters of the outheastern area of the Baltic Sea. The abnormaly high average concentration of radionuclide 137Cs may be the after-effect of additional radioactive waste discharge by unknown sources.