Accumulation of Polycyclic Aromatic Hydrocarbons in Soils and Mosses of Southern Tundra at Different Distances from the Thermal Power Plant
- Authors: Yakovleva E.V.1, Gabov D.N.1, Beznosikov V.A.1, Kondratenok B.M.1
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Affiliations:
- Institute of Biology, Komi Scientific Center, Ural Branch
- Issue: Vol 51, No 5 (2018)
- Pages: 528-535
- Section: Soil Chemistry
- URL: https://journals.rcsi.science/1064-2293/article/view/224532
- DOI: https://doi.org/10.1134/S1064229318030134
- ID: 224532
Cite item
Abstract
A number of polycyclic aromatic hydrocarbon (PAH) structures have been identified in organic horizons of surface-gley tundra soils (Stagnic Cambisols) and the moss Pleurozium schreberi. The total content of polyarenes in soils and P. schreberi exceeds the background values in 3.5–5 times. A tendency of increasing content of polyarenes with the distance from the source to 1 km has been revealed. High coefficients of variation have been found between the contents of PAHs in snow cover, organic soil horizons, and mosses. Light hydrocarbons dominate in the composition of PAHs from the snow and ground covers and mosses. Naphthalene dominates on the surface of mosses in all of the studied plots, which is largely related to its intensive uptake by mosses under pollution conditions. It has been found that when the input of polyarenes onto the surface of tundra phytocenoses increases, the bioaccumulation of PAHs by P. schreberi is intensified, and PAHs begin to penetrate into moss. The increase in the concentration of high-molecularweight polyarenes in the environment plays the key role in the activation of PAH bioaccumulation by moss. It has been shown that P. schreberi can be used as an indicator species for monitoring the contamination of tundra phytocenoses by polyarenes. Both living and dead parts of P. schreberi are suitable for the environmental monitoring of PAH contamination.
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About the authors
E. V. Yakovleva
Institute of Biology, Komi Scientific Center, Ural Branch
Author for correspondence.
Email: kaleeva@ib.komisc.ru
Russian Federation, Syktyvkar, 167982
D. N. Gabov
Institute of Biology, Komi Scientific Center, Ural Branch
Email: kaleeva@ib.komisc.ru
Russian Federation, Syktyvkar, 167982
V. A. Beznosikov
Institute of Biology, Komi Scientific Center, Ural Branch
Email: kaleeva@ib.komisc.ru
Russian Federation, Syktyvkar, 167982
B. M. Kondratenok
Institute of Biology, Komi Scientific Center, Ural Branch
Email: kaleeva@ib.komisc.ru
Russian Federation, Syktyvkar, 167982