Soil cover geochemistry of mining landscapes in the South-East of Transbaikalia (City of Zakamensk)статья Перевод

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Дата последнего поиска статьи во внешних источниках: 6 сентября 2018 г.

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1. Полный текст 10.1134S1875372816030033.pdf 1,9 МБ 13 января 2018 [Timofeev]

[1] Timofeev I. V., Kasimov N. S., Kosheleva N. E. Soil cover geochemistry of mining landscapes in the south-east of transbaikalia (city of zakamensk) // Geography and Natural Resources. — 2016. — Vol. 37, no. 3. — P. 200–211. Presented is a detailed characterization of the present state and pollution of soil cover in the influence area of the Dzhidinskii tungsten-molybdenum plant which takes into consideration the spatial geological inhomogeneity and the functional purpose of urban territories. As part of the investigation, we determined the content levels of heavy metals and metalloids in background soils, and the elements which are the main pollutants of urban soils in the zones of different functional purposes, ascertained the degree of technogenic geochemical transformation of soil cover in the city of Zakamensk, and identified the leading soiland landscape-geochemical factors for accumulation of heavy metals and metalloids in the urban topsoil (0−10 cm) horizons. An assessment was also made of the ecological hazard of soil pollution by a set of heavy metals and metalloids in the main functional zones of the city. A soil-geochemical survey was carried out, and the ICP-MS method was used to determine the total content levels of 14 heavy metals and metalloids of hazard classes I−III as well as Be, Sn, Cs and Bi. The elements were determined, which are the main pollutants of the soils in Zakamensk: W, Bi, Cd, Pb and Mo. The study revealed a need to take into account the metallogenic specific character and geological inhomogeneity of the area by using the local coefficients of concentration (EFl) and dispersal (DFl) which must be calculated not with respect to the average regional background but from the individual (for each parent material) background value in order to more accurately determine the degree of technogenic geochemical transformation of soils, and the ecological hazard of pollution. It is suggested that the ecological hazard should be assessed on the basis of the Integrated Pollution Index (IPI) which is calculated with respect to the world’s average concentrations of heavy metals and metalloids in soils and takes into account hazard classes of elements. [ DOI ]

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