Microelements in anthropogenically contaminated soils in the central part of Petrozavodsk
- Authors: Rybakov D.S.1, Kevlich V.I.1
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Affiliations:
- Institute of Geology, Karelian Research Centre
- Issue: Vol 50, No 6 (2017)
- Pages: 708-719
- Section: Degradation, Rehabilitation, and Conservation of Soils
- URL: https://journals.rcsi.science/1064-2293/article/view/224045
- DOI: https://doi.org/10.1134/S1064229317060102
- ID: 224045
Cite item
Abstract
Urban soils (Urbic Technosols) formed within or near the industrial sites removed of service show a considerable excess over the regional background in the content of Pb, Zn, Cu, Mn, Cr, Ni, as well as over the average content of W, Mo, Pb, Sb, Cr, Cu, Sn, Ni, Zn, and Mn in urban soils. Microelements are concentrated for the most part in the soil fine earth, and above all, in the fraction with particle size <0.1 mm. Surface films (on quartz and feldspar grains) of quartz–feldspar–muscovite (partially with tremolite and chlorite) composition and undifferentiated dispersed mixture of quartz, albite, microcline, muscovite and organomineral soil substance are the strongest concentrators of heavy metals and metalloids. Pb and Sn are partially present in soils as oxides, and a part of Zn and Pb, in the form of substantial admixtures to technogenic chemical compounds. As a whole, distribution of elements in the studied soils is controlled by the specifics and type of contamination, resistance of coarser grains to weathering under the given physicochemical conditions, and by predominantly mineral (quartz–feldspar) composition of the solids in soil layers and the features of elements proper.
About the authors
D. S. Rybakov
Institute of Geology, Karelian Research Centre
Author for correspondence.
Email: rybakovd@krc.karelia.ru
Russian Federation, ul. Pushkinskaya 11, Petrozavodsk, 185910
V. I. Kevlich
Institute of Geology, Karelian Research Centre
Email: rybakovd@krc.karelia.ru
Russian Federation, ul. Pushkinskaya 11, Petrozavodsk, 185910