Statistical assessment of the 137Cs levels of the Chernihiv oblast's milk

The article deals with research directed on overcoming the consequences of the Chornobyl accident at the territory of Ukraine. Results are considered of the use of the long-normal distribution law to evaluate results of 137Cs milk contamination. Critical farms of Chernihiv oblast, where agreeing criteria for assessing the primary data on milk contamination were applied, became the object of the study. An algorithm was applied to calculate factual and forecast repetitions of gradations according to the stages of statistical processing of milk samples contaminated with 137Cs. Results of the milk contamination analysis at a later stage (1991-2001)are described by the long-normal distribution law which can be used to forecast for the subsequent years. The maximum repetability of the gradations of the contaminated milk (from 10 to 40 Bq/l) is determined for factual and forecast frequencies of the levels of contamination thereof. The results of the study are proposed to be used while taking measures directed on diminishing the levels of contamination of agricultural products with 137Cs