Avaliação da qualidade da água do rio macaco e estabelecimento do seu índice de qualidade

Abstract

The importance of water resources for the survival of the world's population is known to all. But the rapid and unplanned growth has affected these resources, increasing pollution and decreasing its availability. So it is becoming more necessary to evaluate and identify the factors that affect water quality. This work was conducted by the need to know the current status of surface water resources River Macaco, located in Sao Lourenco do Oeste - SC, used to supply this city and Novo Horizonte - SC. For this there were three collections, being held once every month in the months of August, September and October 2014, respecting periods of three days without rain, and the samples were conducted to Agroindustrial Quality Laboratory of Water and Food in UTFPR - campus Pato Branco. Physical analyzes were performed - chemical eleven indicators, thermotolerant coliforms, pH, air and water temperature, BOD5, COD, DO, nitrate, total phosphorous, copper and zinc. Later, these indicators were compared with the resolution of CONAMA 375/05, this comparison the thermotolerant coliforms and Total phosphorus contents were outside standards stipulated in the resolution. Also from these indicators was possible to evaluate the Water Quality Index (AQI) of River Macaco, which was classified in two points as Regular and one as Poor.