Abstract
The purpose of this work is a component-wise analysis of the dynamics of anthropogenic impact on the aquatic complexes of the Lower Volga, which includes such indicators as: COD, BOD5, iron, copper, zinc, nickel, mercury, molybdenum, phenols, petroleum products, nitrites, hydrogen sulfide and sulfides and other Methods. The following methods were used in the work: cartographic, comparative-geographical, mathematical-statistical, geoinformation. Results. As a result of the conducted geoecological monitoring, the qualitative and quantitative characteristics of the surface waters of the Astrakhan region were considered, and areas of pollution that were environmentally hazardous to the health of the population were identified. Conclusions. The quality of the Lower Volga waters according to the comprehensive assessment of pollution was determined by the class "dirty", category "a", the excess of MPC was for COD, BOD5, iron, copper, zinc, nickel, molybdenum, mercury, phenols, oil products and sulfides and nitrites. Oxygen regime and pH regime were within normal limits.
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