Estudo comparativo espacial e temporal das águas superficiais a partir dos parâmetros físico-químicos, no Posto Administrativo de Bela Vista, distrito de Matutuíne

Abstract

This work aims to evaluate the variation in the quality of water used for domestic purposes by the population of the village of Bela Vista. It consists of the analysis of laboratory samples for the determination of physicochemical parameters, and a visit to a previously selected study area, with the objective of collecting water samples for laboratory analysis. For the determination of the physicochemical parameters of the collected water samples, the following methods were used: Volumetry, Turbidimetry, Potentiometry, Conductimetry, Flame Photometry. The analyses of the collected samples were carried out at the National Laboratory for Water and Food Hygiene (LNHAA). However, the data do not cover all the physicochemical parameters necessary for a complete evaluation of the water intended for consumption, being limited only to the parameters considered most relevant for this purpose. The results obtained from the analyses show a normal behavior of the concentrations of the analyzed ions, due to the little or no impact of limestone mining activities on cement production in that study area. Regarding the hydrogeology of the region, the nearest boreholes under the management of DNGRH are located, the closest one, at 50km, making comparative analysis difficult due to the distance in relation to other sources considered for the study(TRADUÇÃO NOSSA)