Development of a System for Monitoring the State and Pollution of Land Surface Water in the Design Area of the Nizhneboguchanskaya HPP

Abstract

On the Angara River, there is already a cascade of four hydroelectric power plants. It is planned to build a new dam above Boguchany — Nizhneboguchanskaya hydroelectric station. This creates an additional burden on the river ecosystem. To record the initial state of the Angara River and track the dynamics of indicators, a program for monitoring the state and pollution of land surface waters in the design area of the Nizhneboguchanskaya hydroelectric power station was developed. The location of observation points was determined by taking into account the existing network of state monitoring of the investigated area of the Angara River and the analysis of the sources of anthropogenic pollution of the investigated area of the Angara River. It was proposed to make adjustments to the existing state monitoring system. It is necessary to add new observation points, expand the range of hydrochemical components and add hydrobiological studies. It is planned to establish 12 observation points and 16 sites. Sampling frequency — up to seven times a year in characteristic phases of hydrological regime. Hydrological studies should be carried out during the growing season (June — September).