HEAVY METALS IN BOTTOM SEDIMENTS OF URBAN AND REGIONAL SYSTEMS BASIN R. SIVERSKYY DONETS
Abstract
The aim was to assess the extensive distribution of heavy metals in bottom sediments of rivers Oskol, Lopan, Udy and Seversky Donets on the territory of Kharkiv, Donetsk and Lugansk regions. Trace metals: Al, As, Ca, Cd, Cr, Cu, Fe, Li, Mg, Mn, Ni, P, Pb, Zn and Hg were analyzed using ICP-MS method. The index of the contamination was calculated for 16 sampling sites. The significant variations of Cd, Cr, Cu, Hg and Zn were identified. The results showed that anthropogenic pressure on water bodies is high in urban areas and downstream of wastewater discharge. Contamination in rural areas were less when compared to urban, but still indicated the influence of runoff from agricultural lands.Keywords: bottom sediments, heavy metals, anthropogenic pressure, concentration, index of contamination.
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