Abstract
The article is focused on the results of studying the radiation condition of the soil and grassy vegetation represented by perennial grasses (meadow bluegrass, reed warbler, stonecrop, clover, sedge, timothy) in the South of the Tyumen region. The specific activity of natural radionuclides (K-40, Th-232 and Ra-226) in the profile of gray forest soil of the Nizhnetavdinsky district was established, the specific effective activity of radionuclides in the soil was calculated. Comparative analysis of the obtained results together with the data on administrative districts of the South of the Tyumen region showed that in the soil of the Nizhnetavdinsky district, specific activity of natural radionuclides exceeds the similar indicator typical for the South of the region.
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