ANÁLISES MICROBIOLÓGICAS DAS ÁGUAS DO RIO ALEGRIA E DE SEU AFLUENTE RIO BOLINHA DO MUNICÍPIO DE MEDIANEIRA, PR, BRASIL.
DOI:
https://doi.org/10.18316/258Keywords:
coliformes totais, esgoto doméstico e industrial, qualidade da águaAbstract
O objetivo deste estudo consistiu na avaliação da qualidade das águas do rio Alegria e seu afluente rio Bolinha, através da análise dos parâmetros microbiológicos, na área urbana de Medianeira, PR, Brasil. Nesse município, as medidas de saneamento básico não se diferenciam dos demais municípios do Brasil, pois as ações antrópicas refletem sobre a qualidade da água de seus mananciais, principalmente, pelo despejo direto de esgotos domésticos e industriais, a ocupação desordenada do solo e a ausência de mata ciliar. Realizaram-se oito amostragens dos rios referidos, no perímetro urbano quanto à presença de coliformes totais e fecais. Verificou-se a presença de coliformes totais em todas as amostras e em sete delas confirmou se a presença de coliformes fecais, sendo que nos pontos de amostragem B e E registraram-se os mais altos níveis desse grupo de bactérias. Tal fato exige a tomada de medidas em conformidade com a legislação ambiental, que preconiza o tratamento de esgotos, a recomposição da mata ciliar e a desocupação das áreas de preservação permanente.
Palavras-chave: coliformes totais; esgoto doméstico e industrial; qualidade da água
MICROBIOLOGICAL ANALYSIS OF WATER FROM ALEGRIA RIVER AND ITS AFFLUENT BOLINHA RIVER OF MEDIANEIRA, PARANÁ STATE, BRAZIL.
ABSTRACT
The objective of this study aimed to evaluate the quality of the waters of the Alegria river and its affluent identified as Bolinha river, through the microbiological analysis parameters in the urban área of the city of Medianeira , Paraná state, Brazil. In this city, the basic sanitation procedures do not differ from other Brazilian municipalities, therefore the anthropic actions reflect mainly the quality of its water sources, through the direct ousting of domestic and industrial sewers, the disordered occupation of the ground and the absence of ciliar bush. Eight samples of these rivers in the urban perimeter had been investigated for the presence of total and feacal coliforms. The presence of total coliformes in all the samples were observed as the confirmation of the presence of feacal coliforms in seven samples. It also was observed that at the B and E sampling points, the highest levels of this group of bacteria were registered. Such occurrence demands measures in conformity with the environmental legislation, that praises the treatment of sewers, resetting of the ciliar bush, and the unoccupation of the
permanent preservation areas.
Key words: total coliforms, domestic and industrial drains, quality of the water
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