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Ecological and chemical assessment of the state of the Desna river by bottom sediments on the example of the Bryansk region, Non-Chernozem region of the Russian Federation
- Authors: Plakhotin A.S.1, Anishchenko L.N.1
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Affiliations:
- Bryansk State Academician I.G. Petrovski University
- Issue: Vol 31, No 3 (2023)
- Pages: 368-380
- Section: Environmental Monitoring
- URL: https://journals.rudn.ru/ecology/article/view/36243
- DOI: https://doi.org/10.22363/2313-2310-2023-31-3-368-380
- EDN: https://elibrary.ru/URUCWJ
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Abstract
Studies of the state of bottom soils of the city Desna river (Bryansk) were carried out as part of the recommended studies of state environmental monitoring. The purpose of the work is to identify the current state of the urban watercourse on the basis of ecological and analytical indicators of bottom soils for diagnosing the state of the surface waters of the Desna river. The study of the bottom sediments of the Desna river in the reference areas (cross-sections) showed that the content of heavy metals is within the normal range. The exception is the section of the river in the background region. The excess of concentrations for cobalt and chromium is 8.0 and 1.1 times from the established standards. The highest content of titanium oxide, chromium and cobalt was noted in samples on the right bank of the Desna river in the background area, which indicates that the area is silty. On average, the excess of chromium in spring was 7.5 times, and in summer - 8 times. For cobalt, the excess of the indicator compared to the maximum allowable amounted to 1.1 times throughout the entire spring-summer period. For the first time, the data of three-year studies on the state of bottom sediments are summarized, allowing the development of effective environmental programs and the creation of a constantly updated monitoring base.
About the authors
Aleksey S. Plakhotin
Bryansk State Academician I.G. Petrovski University
Author for correspondence.
Email: eco_egf@mail.ru
Postgraduate Student, Department of Geography, Ecology and Land Management 14 Bezhitskaya St, Bryansk, 241040, Russian Federation
Lidia N. Anishchenko
Bryansk State Academician I.G. Petrovski University
Email: eco_egf@mail.ru
ORCID iD: 0000-0003-4842-5174
SPIN-code: 6600-6010
Professor of the Department of Geography, Ecology and Land Management, Doctor of Agricultural Sciences, Professor
14 Bezhitskaya St, Bryansk, 241040, Russian FederationReferences
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