Natural radionuclides content and radioactive series disequilibrium in drinking waters from Balkans region
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Natural radioactivity of drinking water with various geological origin in Balkans region has been studied. Collected water samples are analyzed for total alpha and total beta activities and specific alpha- and gamma-emitting radionuclides content using low-background proportional counting and alpha and gamma-spectrometry techniques. Obtained activity concentrations of U-238, U-234, U-235, Ra-226, Th-232, and K-40 in water samples and radioactive disequilibrium between members of the natural radioactive series, based on the isotopic ratios, has been discussed.