Hydrochemical characteristics and anthropogenic components of the ionic effluent of the Samara river

The aim of this work was to provide a retrospective review the main hydrochemical indicators water Samara River and calculate anthropogenic component ion flow in modern period, comparative assessment relevant for entire period scientific observations. From average-long-term data composition River, it can be seen that ionic had chloride chloride-sulfate classes, calcium, calcium-magnesium sodium groups. There is trend towards increasing mineralization River. So, 1929, total river ranged from 965 1738 mg/dm3. During 1929 2006, increased by an average 1,800 hardness 12 mg-eq/dm3. content chlorine ions 300 fact growth these connected, first all, with inflow mine waters mines Central Western Donbass. In saline characterized salts. dry balance as January 2022 equal 4228 Such considered record time are several possible reasons phenomenon. One them change ratio natural runoff discharges drainage water, share latter. Another factor may global aridization climate and, result, reduction region flow. removal salts during present has 1 million 100 thousand tons, while amount water-soluble does not grow uniformly. A sharp increase noticeable since 1978, which coincides active commissioning Since then, relatively stabilized. Relatively constant values – 53.5–64.4% noted calcium ions. Moreover, magnesium at our research (February 2022) negative dynamics. largest percentage associated sulfate general, influence on formation salt been very beginning observations mid-thirties last century.