Abstract
Activity concentrations and inventory for 238Pu, 239+240Pu, 241Am, 90Sr, and 137Cs in soil from Tatra Mountains of Poland are presented. Soil samples were collected using 10 cm diameter cores down to 10 cm and sliced into 3 slices. Details of the applied procedure are described with the quality assurance program. The maximum activity concentrations found for various samples were: 1782±13 Bq/kg, 17.4±0.9 Bq/kg, 3.4±0.3 Bq/kg and 84±7 Bq/kg for 137Cs, 239+240Pu, 241Am and 90Sr, respectively. The maximum cumulated deposition of 239+240Pu is 201±8 Bq/m2. The origin of radionuclides is discussed, based mostly on the observed isotopic ratio of Pu. Significant correlations were found between 239+240Pu, 241Am and 137Cs. The effective vertical migration rate seems to be in the order of: 90Sr≫Pu>Am>Cs.
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