Análise qualitativa da água utilizada para consumo humano na área urbana de Barreiras do Piauí

Abstract

The problem related to the lack of water quality is present in several Brazilian states, leaving many people exposed to the risk of contamination. Water analysis is one of the most important means for its quality, however, it is not an assisted reality in some municipalities, unfortunately. The absence of examination is a situation of concern for the population. For this reason, this study sought to verify the quality of the water used for human consumption in the municipality of Barreiras do Piauí, comparing it with a decree no. 2914/11, of the Ministry of Health. To do this, use the qualitative method of research, aiming at the diagnosis of the conditions that were the water for human consumption. In the first stage, a bibliographical research was carried out in order to obtain a better information about the proposed theme, then a sampling plan was drawn up to determine the number of samples to be taken from the study site. In the second stage, 1 well and 2 taps were selected, in different locations, within the urban perimeter of Barreiras do Piauí, in June, July and August of 2017, totaling 9 samples. In the physicochemical analyzes, dissolved oxygen, phosphorus, pH and nitrate were determined. In the microbiological analyzes, the number of total and thermotolerant coliforms was determined. The results found from the analyzes carried out, revealed that we are physicochemicals, only two with the values for the standard: pH and phosphorus. In the microbiological analysis, a presence of total coliforms was found.