Avaliação da qualidade da água do município de Cuiabá segundo parâmetros microbiológicos da Portaria 518

Abstract

Water is a natural resource essential for there to be life in the world, but many impurities can be found in it , making the water unfit for consumption , these unwanted impurities can be found even in treated water intended for human consumption . The Ordinance of the Ministry of Health No. 518 of 25 March 2004 establishes procedures and standards for drinking water in order to prevent outbreaks of diseases linked to water and food security. The aim of the study was to evaluate the quality of drinking water supplied by the municipality CAB - Cuiabá Cuiabá - MT under microbiological parameters (total coliforms and Escherichia coli) recommended by the Ordinance No. 518 / 04 . 5 samples were collected at two points pre - established randomly in the city of Cuiabá. The Colilert test kit was used to detect total coliforms and E. coli in water. The microbiological analysis showed absence of E. coli in all samples, but 40 % were positive for total coliform analysis indicating possible faecal contamination. These results can be justified by seepage pits, possible failures in water distribution network or direct contact with animal feces. Thus, the samples do not meet the parameters of the decree No. 518 / 04 showing up unfit for human consumption.