Section

Ecology

Title

ECOLOGICAL-TOXICOLOGICAL STATE OF URBAN SOILS IN CONDITIONS OF GEOCHEMICAL ANOMALIES

Сontributors

R. F. Khasanova, Ph. D. (Biology), Dr. Habil., Leading Researcher, This email address is being protected from spambots. You need JavaScript enabled to view it.,

I.N. Semenova, Ph. D. (Biology), Dr. Habil., Senior Researcher, This email address is being protected from spambots. You need JavaScript enabled to view it.,

Ya. T. Suyundukov, Ph. D. (Biology), Dr. Habil., Director,

Y. S. Rafikova, Ph. D. (Biology), Senior Researcher, State Autonomous Scientific Enterprise (SASE) Institute of Strategic Studies Republic of Bashkortostan, Sibay branch, Sibay,

G. R. Ilbulova, Ph. D. (Biology), Associate Professor,

G. Sh. Kugina, Ph. D. (Biology), Associate Professor, Sibay Institute (branch) of the Bashkir State University, Sibay,

G. Sh. Singizova, Ph. D. (Biology), Teacher, Sibay College of Construction and Service

Abstract

The article deals with soil pollution with heavy metals in the town of Sibai, the industrial center of the Bashkir Trans-Urals, caused by anthropogenic impact imposed on the natural geochemical background. The main pollutants of urban soils are copper, zinc and cadmium. In spite of the significant excess in some cases of the maximum permissible concentrations (up to 8.9 times in the content of copper, up to 5.1 times in the content of cadmium, up to 4.9 times the content of zinc, up to 1.3 times the content of manganese), most of the studied soils are attributed to the permissible category ofpollution. The ecological and toxicological state of soils in collective orchards in general is also permissible, although the copper and zinc levels in the soils of orchards plots developed during the long time and located near the town exceed the maximum allowable concentrations. A critical environmental situation has been recorded in residential areas, especially near the Sibai quarry in the Gorny microdistrict, the degree of soil contamination of which is moderately dangerous. The received results testify to the need to develop a town program for soil sanitation with the use of technologies for their detoxification.

Keywords

the Bashkir Trans-Urals, heavy metals, soil contamination.

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