Presence of emerging and conventional contaminants in water sources in the city of Cuiabá (MT): potential sources and damages

Abstract

This study evaluated the water sources at the points of water collection for human supply, identifying conventional and emerging pollutants that could compromise the public supply of the municipality of Cuiabá-MT. Raw water was analyzed at three water pumping sites, using secondary (2014 to 2019) and primary (June and November 2019) data. The parameters described in current regulations were used to calculate the Index of Conformity with the Guidelines, which assesses the distance between planned quality and measured quality. Drugs were discussed based on ecotoxicological studies. There was a reduction in the quality of water sources in the urbanized area, with the disposal of in natura domestic sewage and surface runoff as the most important causes of this reduction. Measures are needed to expand and ensure adequate and efficient collection and treatment of effluents, preventing pollutants from reaching rivers.