The effect of long-range atmospheric transport of organochlorine compounds by soil studies from Mongolia to the Arctic
- Authors: Mamontova E.A.1, Tarasova E.N.1, Mamontov A.A.1, Kuzmin M.I.1
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Affiliations:
- Vinogradov Institute of Geochemistry, Siberian Branch
- Issue: Vol 466, No 2 (2016)
- Pages: 169-172
- Section: Geochemistry
- URL: https://ogarev-online.ru/1028-334X/article/view/188043
- DOI: https://doi.org/10.1134/S1028334X16020148
- ID: 188043
Cite item
Abstract
The results of studies on the distribution regularities are presented for polychlorinated biphenyls (PCBs) of different degrees of chlorination and for organochlorine pesticides (OCPs): hexachlorobenzene (HCB), hexachlorocyclohexane (HCCH), and DDT with its metabolites in the soils along the Lena River valley and in background areas of Eastern Siberia and Mongolia. A statistically reliable correlation is found between the PCB–OCP and Corg concentrations. The highest levels of HCB are registered in the soils between 50 and 60° N. The concentrations of αand γ-HCCH increase reliably, while those of pp′-DDT and pp′-DDE decrease from south to north. A trend of the decrease in concentrations from Mongolia to the Laptev Sea is revealed for tri-, tetra-, and penta-chlorine-substituted PCB congeners. However, the soils sampled northwards from 60° N show a reliable increase in the concentrations of tetra-, penta-, and hexachlorine-substituted congeners.
About the authors
E. A. Mamontova
Vinogradov Institute of Geochemistry, Siberian Branch
Author for correspondence.
Email: elenam@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033
E. N. Tarasova
Vinogradov Institute of Geochemistry, Siberian Branch
Email: elenam@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033
A. A. Mamontov
Vinogradov Institute of Geochemistry, Siberian Branch
Email: elenam@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033
M. I. Kuzmin
Vinogradov Institute of Geochemistry, Siberian Branch
Email: elenam@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033
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