ANTHROPOGENIC INFLUENCE ON THE WATER QUALITY OF THE PARAGOMINAS STREAM, IN THE MUNICIPALITY OF PARAGOMINAS, PARÁ

Abstract

This article aimed to evaluate the influence of anthropogenic activities on the water quality of the Paragominas Stream, located in the urban area of the municipality of Paragominas, Pará, considering the urbanization process and the lack of adequate sanitation infrastructure. The study aimed to analyze physical, chemical, and microbiological water parameters in order to identify changes associated with human activities. The methodology consisted of water sampling at three distinct points along the stream during the dry and rainy seasons, using georeferencing and following the protocols of the National Sampling Guide (ANA/CETESB). The parameters analyzed included temperature, hydrogen potential (pH), total coliforms, and thermotolerant coliforms, using a multiparameter probe and the Most Probable Number method. The results showed significant changes in water quality, with a tendency toward acidification, increased temperature, and constant presence of coliforms at all sampling points, regardless of seasonality. It is concluded that the Paragominas Stream is under strong anthropogenic impact, indicating the need for urgent sanitation measures, environmental management, and continuous monitoring, in line with Sustainable Development Goal 6.