Abstract:To estimate the contribution of Chernobyl 137Cs contamination, in 1993 and especially 2016, its total inventory was determinate by gamma-ray high resolution spectroscopy in 62 and respectively 747 soil samples covering entire Romanian territory. This permitted to estimate the 1993 and 2016 total 137Cs inventory to 43 ± 2 TBq and respectively to 14.1 ± 0.7 Tbq, the last one reduced by factor of 3 ± 0.3. This value, about twice higher than natural disintegration suggests a significant amount of 137Cs being washe… Show more
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