Avaliação da qualidade da água de consumo humano em propriedades rurais do município de Condor - RS

Abstract

Water is fundamental to all aspects of life, and it is necessary to be drinkable for human consumption, in addition to being essential for the development of various human activities. This study aimed to evaluate the quality of water for human consumption in supply wells of three rural properties in the municipality of Condor - RS. Water samples were collected from the tap connected to the well of each rural property, from May to August 2021, once a month. The water samples collected were subjected to physical, chemical and microbiological analysis and subsequently compared the results found with the Ordinance of the Cabinet of the Minister/Ministry of Health n.º 888 of 2021 and with the determinations of the World Health Organization. It was found that the variables apparent color, turbidity, total hardness, fluoride, nitrite, hydrogenic potential and Escherichia coli, were in accordance with current legislation. On the other hand, the variables total iron and total coliforms were in disagreement with the legislation, in certain properties studied and in certain periods. The variables electrical conductivity, temperature and total alkalinity were also evaluated, but did not present maximum values established in the current legislation. Regarding the macroscopic analysis, the three wells studied showed a reasonable degree of preservation (C). In order to guarantee safe water consumption, it would be necessary to carry out disinfection through a chlorination system in the analyzed wells, as well as greater preservation around them, factors that directly influence the quality of the water.