Archives → 2020 → V. 60. №4. → pp. 426–438
Article
Distribution of Natural Radionuclides and 137Cs in Soil Profiles of Forest, Agricultural and Urban Ecosystems of the Moscow Region
D. N. Lipatova, D. V. Manakhov, S. V. Mamikhin, and G. I. Agapkina
Lomonosov Moscow State University, Soil Science Faculty, Moscow, Russia
Abstract
Types of distribution of 226Ra, 232Th, 40K and 137Cs has been defined in the profiles of natural and technogenic-disturbed soddy podzolic, soddy podzolic gley, agricultural soddy podzolic soils and stratozems in Solnechnogorsk and Ramenskoye districts of Moscow region. Conjugacy of profile distributions of natural radionuclides has been revealed. It has been found that the deposition of 137Cs is 0.8–3.0 kBq/m2 in the studied areas and corresponds to the levels caused by global fallout. The observed levels of specific activity of 226Ra, 232Th, 40K in soil horizons depend to the greatest extent on the areas of occurrence that differ in composition of soil-forming and underlying rocks, while the influence of soil types and ecosystems is not expressed.
Keywords
natural radionuclides, 226Ra, 232Th, 40K, 137Cs, radiation monitoring, soddy podzolic soils, stratozems
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