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Radionuclides from water samples from the Chernobyl exclusion zone were studied for anthropogenic radionuclides 137Cs and 90Sr. Tritium levels remained below detection limits. For comparison, a sample of mollusk shells from the cooling pond of the NPP has been included into the study, which were found to accumulate 90Sr by a factor of 600 from the surrounding water. The highest contamination in water...
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