Abstract
The article presents the results of research of bottom sediments of rivers of two main river basins of East Donbass - Seversky Donets and Tuzlov. In the rivers Seversky Donets basin, the distribution of trace elements (Fe, Mn, Pb, Cu, Ni, Cr, Zn, V, Sr) was found to be characterized by large variations, largely due to the more heterogeneous granulometric composition of river alluvium. As a result of the analysis of heavy metals, distribution in heavy, sandy-aleurite and pelite fractions, the value of the latter as the main carrier of trace elements in bottom sediments was revealed. The calculation of the total level of bottom sediments contamination of gross samples and the pelite fraction showed that, in general, the rivers of the region have a weak level of pollution. It has been established that it is the pelite fraction gives the most objective information about the aquatic environment.
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