Determinação dos parâmetros físico-químicos em amostras de água de poços do município de Cuité - PB.

Abstract

Water is an essential substance for the preservation of life and performs a wide spectrum of functions in people's daily routine. However, for human consumption, it is essential that the water complies with the standards established by the Ministry of Health. In this sense, it is imperative to carry out analyzes of the physical-chemical aspects of this water and, thus, verify its safety for human consumption . In Brazil, particularly the Semiarid region, it suffers most from the lack of water resources, forcing, on many occasions, the population to use water sources of dubious quality due to pressing needs. Consequently, the purpose of this study was to evaluate the quality of water coming from wells located in the municipality of Cuité, Paraíba, through the analysis of physical-chemical parameters as stipulated in Ordinances No. 5/2017 and No. 888/2021 of the Ministry of Health, based on water samples collected in March 2023. The aim is to provide information about the quality of water that is distributed to supply the city, both to the general population and to local authorities. In this context, measurements were made of the following parameters: pH, conductivity, alkalinity, hardness, turbidity and chloride concentration. This made it possible to observe that, among the samples analyzed, the pH and chloride levels did not meet the limits established by the Ministry of Health. With regard to total hardness, samples I, III and IV exceeded the maximum value allowed. As for other parameters, the samples collected demonstrated acceptable levels for potability. Based on the results obtained, it was clear that the water from these wells does not meet the quality standards necessary for human consumption and, consequently, should not be used to supply the population.