ASSESSMENT OF THE QUALITY AND ECOLOGICAL STATUS OF THE SAKSAGAN RIVER IN THE CONTEXT OF DRINKING WATER AND FISHERY PURPOSES
DOI:
https://doi.org/10.15421/jchemtech.v31i4.291632Keywords:
water quality assessment, Saksagan River, ecological condition, small rivers, hydrochemical parametersAbstract
The problems of pollution of small rivers of Ukraine and the search for ways to solve them were and remain quite relevant. In connection with the intensive exploitation of Kryvbas iron ore deposits and significant quarry and mine drainage, specific hydrochemical conditions have arisen in this region. It is also important that as of March 1, 2020, the Cabinet of Ministers of Ukraine once again allowed mining enterprises of the Kryvyi Rih Basin to discharge return water from tailings in the Ingulets River and Saksagan River "to prevent an emergency situation at hydrotechnical facilities". The work investigated and analyzed the current physico-chemical state of the Saksagan River with the help of own monitoring studies and online state monitoring data, provided an assessment of the state of the river as a source of economic, drinking and fishery use. The research was conducted in the summer of 2023, 9 monitoring points on the Saksagan River of the Kryvorizka district, Dnipropetrovsk region were selected for chemical analysis of water, previously the points were grouped into 3 groups of three according to territorial characteristics. According to the research results, it was found that the water in all experimental areas does not meet the normative indicators of water quality for fishery needs in terms of sulfates, chlorides and general mineralization. With regard to sulfates, the water does not meet the fishery standards at all moritoring points, and only points 1 and 9 meet the sanitary stan-dards. The water does not meet the normative indicators of water quality for drinking, household and other needs in terms of chlorides and general mineralization, and at almost all points in terms of sulfates (points No. 2, 4–8).
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