Bastrygina T.M., Koliabina I.L., Marinich O.V., Tyshchenko O.Yu.
State Institution “Institute of Environmental Geochemistry , National Academy of Sciences of Ukraine”
Language: Ukrainian
Geochemistry and ore formation 2015, 35: 48–55
https://doi.org/10.15407/gof.2015.35.048
In regions with well-developed mining and processing industries, investigation of technogenic facilities effect on the environment is necessary. In Dniprodzerzhynsk region, there are seven uranium mill tailing dams and two industrial waste storages of the former production association “Prydniprovsky chemical plant” as well as sludge dumps and heaps of the coking plant (Public company “EVRAZ Dneprodzerzhynsk coking plant), an ash dump of the metallurgical plant (Public company “F. E. Dzerzhynsky Dneprodzerzhynsk metallurgical plant) etc. Other industrial and settlement areas are adjacent to those facilities. Powerful industrial plants have significant anthropogenic influence on the environment. Ecological and geochemical methods provide not only determination of principles of elements distribution in the environment but also estimation of technogenic facilities effect on the separate landscape components. Analysis of microelement composition of the upper soil in the area affected by tailing dumps and technogenic objects of Dniprodzerzhynsk industrial region as well as schematic maps of Zr, Mn, REE+Y, Ni, Cu, Pb have been carried out. Lithogeochemical and sanitary data for the soils on the areas under study are discussed. Trace elemental analysis of “technogenic” and urban soils was carried out using atomic emission spectrometry. The mapping of elements distribution in soils affected by technogenic facilities was performed using ArcGIS software package. Following geochemical indices was calculated: clarkes of concentration of elements relative to those in soils and to mean value of elements content. Geochemical coefficients of trace elements was normalized to maximum permissible concentration in soils and to clarkes in urban soils. The exceeding of Ni and Cu maximum permissible concentrations was determined in samples from the waterside of the Konoplyanka River flowing in the immediate vicinity of the tailing dams “Tsentralnyi Yar”, “Dniprovske”, “Zakhidne” and “Pivdenno-Skhidne”. It suggest that the migration of these elements from tailings and their accumulation in riverside soils takes place. It was determined that the content of Ni, Cu and Pb in the soil of the settlement zone is twice as large as the maximum permissible concentration, and in soils affected by tailings it is four times higher. The elevated concentration of Ce in the upper layer of “technogenic” soil of the area studied is the subject of detailed investigation.
Key words: Dniprodzerzhynsk industrial region, tailings dumps, technogenic soils, trace elements, heavy metals, geochemical indices of soil contamination.
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