UDC

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Authors

Yu.S. Vishnevaya*, L.F. Popova*
*Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russian Federation)
Corresponding author: Yuliya Vishnevaya, address: Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, 163002, Russian Federation; е-mail: Ujka23@yandex.ru

Abstract

The paper considers the problem of soil contamination by heavy metals (Pb, Zn, Cu, Mn, V, Co, Ni) due to the increased traffic load and decline in manufacturing output in the city of Arkhangelsk. A series of field and laboratory researches are carried out; traffic load, agrochemical properties (particle size distribution, content of organic substance, рН) and total content of heavy metals in the samples of soil are defined. The concentration factor and the aggregate coefficient of technogenic pollution, allowing us to assess the biogeochemical changes occurring under the anthropogenic impact, are calculated. Based on the ecological regulation scale, the level of soil pollution by heavy metals in Arkhangelsk is evaluated. The results confirm the presence of polymetallic soil pollution by Pb, Cu, Zn and Ni. The accumulation series of heavy metals in the studied soils is as follows: Co < Mn < V < Ni < Zn < Cu < Pb. The test samples of the soil cover are sandy and characterized by a weakly alkaline (less neutral) medium reaction (pH = 6.44…7.67); organic matter content ranges from 2...8 %. The impact of agrochemical properties of soil and traffic load intensity on the content of heavy metals has been considered. The correlation analysis indicates the multiple parameters influencing on the accumulation of heavy metals in the soil cover of the city of Arkhangelsk. The level of soil contamination with heavy metals is caused not only by the soil agrochemical properties, but also by the anthropogenic impact specifics – by the intensive use of motor transport, especially in recent years.

Keywords

traffic load, soil cover, heavy metal, polymetallic pollution, soil agrochemical property, particle size distribution, organic substance

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