The incorporation of 40 K in the body of residents of the Luninets district of the Brest region was studied based on the results of 58809 measurements on a human radiation spectrometer for the period from 2016 to 2020. Significant differences were established in the specific content of potassium in body tissues according to such criteria as place of residence, residence at the time of the Chernobyl accident, age, gender. Of these, age and gender are recognized as the most significant and determining. Linear regression models have been created that describe the accumulation of 40K in the body of residents of the area, depending on age and gender. It was found that modeling the agedependent content of 40 K shows the best results with a preliminary separation of the population by gender.
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