The hydro-ecological state assessment of piedmont rivers of the Republic of Uzbekistan in the climate change context
T AkhmedovaScientific Research Hydro-meteorological Institute (SRHI) of Uzhydromet, Tashkent, UzbekistanIndira AkramovaScientific Research Hydro-meteorological Institute (SRHI) of Uzhydromet, Tashkent, UzbekistanA RadjabovSamarkand State Institute of Architecture and Construction, Samarkand, UzbekistanDildora MavlyanovaTashkent Institute of Irrigation and Agricultural Mechanization Engineers, Tashkent UzbekistanRuslan BaymanovTashkent Institute of Irrigation and Agricultural Mechanization Engineers, Tashkent Uzbekistan
ABI
Abstract
Abstract This article describes the dynamics of the spatial and temporal distribution of pollutants and the main sources of surface water pollution by household and industrial wastewater. It emphasizes that water pollution increases from the headwaters to the river mouth, and in lower reaches of the river, there is not natural river water, but wastewater. Industrial, household and agricultural wastewaters discharged into water bodies without treatment, or often after inefficient treatment, change the hydro-chemical and hydro-biological regimes that affect the quality of water and disrupt the normal functions of aquatic flora and fauna. The data obtained from 1991 to 2019 were used as the basis for this article.
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