Abstract
The article presents the results of research on the chemical composition of the water of the largest reservoir in the Chelyabinsk Oblast that is the Argazin reservoir, which historically experiences technological impact of the metallurgical facilities. The connectivity of the main chemical indicators of water quality was evaluated using cluster analysis. Hydrodynamic modeling was carried out, which enabled to determine the migration routes of pollutants (AR) through the water area of the Argazin reservoir, to predict the concentrations of AR in the event of their input through the Miass River. Conclusions have been made about the significant self-purification ability of the reservoir. The main unfavorable factors in which water quality in the reservoir may deteriorate were identified.
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