Environmental and toxicological assessment of the water quality of Burshtynska TPP cooling reservoir
Abstract
Purpose. Determination of the ecological and toxicological assessment of the water quality of the cooling reservoir of the Burshtyn TPP, which is a component of the Galicia National Nature Park.
Methods., Field research, analytical, biotesting, statistical.
Results. The assessment was carried out on the basis of the results of determining the toxic properties of water samples. Water samples were taken in the winter of 2024 in the Burshtyn Reservoir, located on the Hnyla Lypa River. The levels of chronic water toxicity were determined using the biotesting method for the crustacean Ceriodaphnia affinis Lilljeborg. The obtained results show that 50% of the samples taken showed chronic toxicity, namely, samples from the samples taken on the coast of the reservoir within the city of Burshtyn, from the recreational area of the reservoir used by the local population for swimming and recreation, and the area of the reservoir within c. Demyaniv, which is also under the influence of the highway, fish farming. The left bank of the reservoir and the confluence of the Gnyla Lypa River into the reservoir - the first class of water quality has been established in this area and the water is defined as clean according to the degree of pollution. The right bank of the reservoir, which is within the limits of the influence of the highway, excess recreational influence, inflow of surface runoff from the city of Burshtyn, has lower water quality indicators, characterized as the second class of water quality, and according to the degree of pollution, the water is defined as slightly polluted. In other representative bodies, the selected water samples met the standard of water quality according to the toxicological indicator - the absence of chronic water toxicity.
Conclusions. It was established that the left and right banks of the Burshtyn Reservoir are subject to different technogenic loads, different parts of the reservoir are subject to different levels of influence from different sources of pollution and, as a result, have different water quality classes. It is necessary to continue monitoring studies to increase the level of environmental safety of water bodies within the influence of the thermal power plant in terms of increasing control structures.
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