Heavy metals content in the water of the rivers of the Central Caucasus (the Terek River basin)

The identification of the hydrological and hydrochemical characteristics of the water of specific water bodies is of great importance in solving the problems of environmental regulation. For Russia, with its extreme diversity of natural and climatic conditions, this is especially important. Accordingly, during environmental regulation, it is necessary to take into account the regional peculiarities of the formation of the chemical composition of natural waters. The article presents data on the content of dissolved forms of heavy metals TM (V, Cr, Mn, Zn, Cd, Pb, Mo, Ni) in the water of the rivers of the Central Caucasus (Malka, Baksan, Cherek, Urukh, Terek, Nalchik, Lesken, Chegem, Shalushka, Urvan, Kurkuzhin) in the middle and lower the current. The security of river flow in 2021 was 50 %.The water resources of the Terek River basin play a key role in the economy of the republics. In terms of the degree of economic and environmental impact, the basin, which has great industrial, economic, health and recreational significance, is among the most strained.