Archives → 2022 → Vol. 62, № 4 → pp. 434–445
Article
Thorium Concentration in Plants: A Review of World Data
Fesenko S.V., Emlyutina E.S.
Russian Institute of Radiology and Agroecology, Obninsk, Russia
Abstract
A review of available data on thorium concentrations in plants and related foodstuffs is presented. It is shown that the concentration of 232Th in plants in regions with normal background radiation varies from 0.5 × 10–4 to 22 Bq/kg, while in regions with elevated environmental thorium concentrations it reaches 0.058–80.0 Bq/kg. It was also shown that the distribution of thorium among plant tissues is heterogeneous. The role of root systems as a biological barrier for thorium penetration into plants is noted.
Keywords
Thorium, uranium, plants, data review, concentration ration
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