ANÁLISE PRELIMINAR DOS PARÂMETROS FÍSICO-QUÍMICOS E MICROBIOLÓGICOS DAS ÁGUAS DO CÓRREGO PARAÍSO – TRECHO URBANO DO DISTRITO DE VIEIRA MACHADO, EM MUNIZ FREIRE-ES

Abstract

Studies that address the analysis of the quality of water resources are of extreme importance to subsidize actions of environmental sanitation and to improve the quality of life. Considering this relevance, the objective of this study was to preliminarily evaluate the water quality of the Paraíso stream, in the Vieira Machado urban stretch, in the rural area of Muniz Freire/ES. This work is part of a project to improve environmental sanitation in the region. Three points of analysis were defined in relation to the urban area (upstream; in the urban area; downstream), where physical-chemical analyzes and water collection were performed. The samples were sent to a laboratory for the microbiological analysis through the multiple tube technique, which was divided into: presumptive test and confirmatory test, in concentrations 1: 1, 1:10 and 1: 100, to determine the presence of fecal coliforms and Escherichia coli, and then frame the results according to the legislation. With the exception of pH, which was more acidic, all parameters were in accordance with legislation. However, turbidity and dissolved oxygen concentrations and deficits were worsening downstream, coupled with rising temperature, evidencing the district's influence on water quality. A high presence of coliforms was detected, mainly due to the absence of a domestic effluent treatment system. The applicability of the project together with actions of environmental sanitation and mitigation of environmental impacts will be of paramount importance to improve the water quality of the Paraíso stream.