Mapping of ¹³⁷Cs contamination density on agricultural lands based on the summary of the survey results

A methodology for mapping the density of ¹³⁷Cs contamination of agricultural land is proposed and tested. The methodology is based on data on gamma-dose rate measurements, gamma-logging results, and direct determination of ¹³⁷Cs in soil samples, which were obtained by different organizations in different years. It allows to generalize all available information on ¹³⁷Cs contamination of the lands and significantly improves the representativeness of estimates of the spatial distribution of the radionuclides at the mapping. (author)