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Contaminação por Enterococcus da água das praias do município de São Luís, Estado do Maranhão = Water contamination by Enterococcus at the beaches of the municipality of São Luís, Maranhão State, northeastern Brazil

Authors :
Viviane Correa da Silva
Adenilde Ribeiro Nascimento
Ana Paula Carvalho Mourão
Sebastião Vieira Coimbra Neto
Francisca Neide Costa
Source :
Acta Scientiarum: Technology, Vol 30, Iss 2, Pp 187-192 (2008)
Publication Year :
2008
Publisher :
Universidade Estadual de Maringá, 2008.

Abstract

O objetivo deste estudo foi avaliar as condições higiênico-sanitárias das praias do município de São Luís, utilizando os Enterococcus como indicador. Foram avaliados dois períodos distintos, estação chuvosa e seca. A amostragem foi realizada quinzenalmente na estação chuvosa e semanalmente na estação seca. Aferiu-se o pH no local da coleta e no laboratório, realizou-se análise microbiológica de acordo com ametodologia dos tubos múltiplos, conforme preconiza a American Public Health Association – APHA (1995). O pH mostrou-se dentro do padrão, com índices entre 7 e 8, em todas as praias. Constataram-se altos índices de Enterococcus, da ordem de 102 a 103 NMP 100 mL-1 no período seco, chegando a 105 no período chuvoso. Conclui-se que as praias Ponta da Areia e do Calhau se caracterizaram como impróprias para banho nos períodos avaliados, enquanto as praias Olho d’Água e Araçagi se enquadraram como próprias.The aim of this study was to evaluate the hygiene and sanitary conditions of the beaches of the city of São Luís, using Enterococcus as the indicator. Two distinct periods were studied: the rainy and drought seasons. The samplings were performed fortnightly during the rainy season and weekly at dry season. Water pH was measured at the sampling site, and microbiological analysis was performed at the laboratory using the multiple-tube method, as recommended by the American Public Health Association – APHA (1995). The pH was found to be within normal levels, between 7 and 8, for all examinedbeaches. High levels of Enterococcus, between 102 and 103 MPN 100 mL-1, were found during the drought season, reaching 105 MPN 100 mL-1 in the rainy season. It was concluded that the beaches of Ponta da Areia and Calhau were characterized as improper for swimming at the examined periods, while the Olho d’Água and Araçagi beaches were suitable.

Details

Language :
English, Portuguese
ISSN :
18078664
Volume :
30
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Acta Scientiarum: Technology
Publication Type :
Academic Journal
Accession number :
edsdoj.7de723b8aa264794a815f02db423c247
Document Type :
article