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Estimation of Radioecological State at the Objects of the Former Novotroitsk Mining Department, Baley (Zabaykalsky Region)
https://doi.org/10.18412/1816-0395-2022-5-37-43
Abstract
The results of dosimetric measurements which were carried out on the territory of the former Novotroitsk mining department quarry (Baley, Zabaykalsky region) are obtained. The map of radioactive contamination of the quarry territory is presented. A number of objects on the explored area where the gamma ray dose ambient equivalent is exceeds the maximum permissible level of 0.60 mSv/h were identified. The specific effective activity and chemical composition of a soil sample taken at one of the contaminated sites were determined. It is detected that the main source of radioactivity is 232Th nuclide, which is part of the mineral monazite. The possibility of effective concentration of thorium-containing minerals by gravitational separation was shown. The main factor of the spread of radioactive contamination is water erosion of soils from the walls of the quarry.
About the Authors
N.S. Markin
Institute of Chemistry of the Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
engineer
S.I. Ivannikov
Institute of Chemistry of the Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Cand. Sci. (Chem.), Research Scientist
A.M. Egorin
Institute of Chemistry of the Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Cand. Sci. (Chem.), Head of Department
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Review
For citations:
Markin N., Ivannikov S., Egorin A. Estimation of Radioecological State at the Objects of the Former Novotroitsk Mining Department, Baley (Zabaykalsky Region). Ecology and Industry of Russia. 2022;26(5):37-43. (In Russ.) https://doi.org/10.18412/1816-0395-2022-5-37-43
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