Análise da qualidade da água e impactos ambientais no reservatório da usina hidrelétrica corumbá iii análise limnológica e variação sazonal no reservatório da uhe Corumbá

Abstract

Objectives: To evaluate the water quality and limnological dynamics of the Corumbá III Hydroelectric Power Plant reservoir (GO), considering seasonal variation and the presence of chemical contaminants, such as agrochemicals and heavy metals. Methodology: This is a descriptive and analytical study based on secondary data from environmental monitoring reports conducted in January, April, and July 2025, January 2026, Physicochemical parameters such as temperature, pH, dissolved oxygen, and turbidity were analyzed, in addition to nutrients, biological communities, and potentially toxic substances, including agrochemical residues and heavy metals. Results: The data revealed significant seasonal variations, with increased turbidity during the rainy season, associated with sediment runoff and potential contaminants from agricultural activities. Evidence of agrochemicals and heavy metals was identified in concentrations compatible with environmental standards, but with the potential for ecological impact. Conclusion: The reservoir has good to fair water quality, with characteristics typical of tropical environments; however, the presence of contaminants reinforces the need for continuous monitoring and control of anthropogenic activities in the watershed.