Avaliação dos efeitos da ação antrópica sobre a qualidade da água do Ribeirão Sampaio em Pires do Rio - GO

Abstract

Water quality monitoring is a relevant tool for planning and taking actions to ensure water conservation in a watershed. The objective of this study was to evaluate the effects of anthropic action on the quality of perennial emergency waters in the Ribeirão River Basin in Pires do Rio-GO. For this, four emergencies had their physical characteristics (temperature, turbidity, total solids and electrical conductivity), chemical (pH, nitrate, phosphate demand biochemical oxygen and dissolved oxygen) and microbiological (total and thermotolerant coliforms) monitored over a year, in campaigns in the rainy and dry season, in addition to determining the water quality index (WQI). According to the results, it was found that all the points analyzed both in the rainy season and in the dry season presented thermotolerant coliform count and "good" WQI, indicating that, even being water of emergency, there is a need for at least simplified treatments. The adoption of preventive measures aimed at the preservation of water sources, and the treatment of already compromised waters are the necessary tools to considerably reduce the risk of occurrence of waterborne diseases.