Evaluation of 20 years of environmental monitoring data around Swedish nuclear installations.
2002
Abstract Twenty years of environmental monitoring data around the Swedish nuclear power plants and the Studsvik research facilities have been evaluated. In the marine environment, Fucus vesiculosus generally has high activity concentrations and the presence of a large variety of radionuclides in comparison with other bioindicators. However, for single nuclides the detection frequency was higher for 110 m Ag in Littorina spp and for 152 Eu in Macoma baltica in comparison with other bioindicators. Close to the discharge point the activity concentration of 60 Co in F. vesiculosus and in the discharge water were correlated. In the terrestrial environment, few radionuclides were detected and the activity concentrations were generally low. Of the terrestrial indicators, mosses had the highest activity concentrations and also comprised the largest variety of radionuclides. The radiation doses to humans based on measurements of released activity were small. Based on the results from the evaluation, alternative sampling strategies for the monitoring program are discussed.
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