Condições sanitárias das águas de piscinas públicas e particulares

As piscinas representam locais de recreacao, porem podem colocar em risco a saude dos usuarios pela possibilidade de veicular agentes danosos. A norma tecnica do Estado de Sao Paulo para o controle de qualidade das aguas de piscina entrou em vigor em 1979, e requer revisao. Este trabalho avaliou as condicoes sanitarias das aguas de piscinas do Municipio de Praia Grande/SP. Foram coletadas quatro amostras semanais por estabelecimento, sendo duas piscinas publicas e seis particulares, totalizando-se 32 amostras. Os exames microbiologicos foram realizados segundo a APHA, 2005, para coliformes totais, Escherichia coli, Enterococos, Pseudomonas aeruginosa, Staphylococcus aureus, bolores e leveduras. As analises fisico-quimicas de turbidez, cloreto, nitrato, nitrito, cor, condutividade, ferro, sulfato, dureza total, odor, temperatura, pH e cloro residual livre foram efetuadas, de acordo com a ANVISA/MS, 2005. Apenas duas amostras estavam de acordo com a legislacao e 30 mostraram nao conformidade, quanto aos parâmetros estabelecidos (cloro residual livre e pH). Houve presenca de coliformes totais, Pseudomonas aeruginosa e Staphylococcus aureus, nao previstos na norma. Alem da necessidade de controle permanente da qualidade das aguas de piscinas localizadas no mencionado municipio, esses achados oferecem subsidios para efetuar atualizacao da legislacao em vigor no Estado de Sao Paulo. (AU) This study aimed to assess the health conditions of water from public and private swimming pools locatedin Praia Grande, Sao Paulo State, Brazil, regarding the microbiological control and physical-chemicalcharacteristics. Four samples were collected weekly from each site, being two public swimming pools andsix private ones (sports academies), and a total of 32 samples were analyzed. The microbiological tests wereperformed according to APHA, 2005, for coliforms, Escherichia coli, Enterococos, Pseudomonas aeruginosa,Staphylococcus aureus, yeasts and molds. The physical and chemical analyses were carried out using themethodology described by ANVISA/MS, 2005. Turbidity, chloride, nitrate, nitrite, color, conductivity, iron,sulfate, total hardness and smell were determined; in the field, temperature, pH and free residual chlorinewere measured. Only two samples were approved, and 30 were in disagreement in the restricted free residualchlorine and pH parameters, and also coliforms group, Pseudomonas aeruginosa and Staphylococcus aureuswere isolated, which are not included in the specific legislation. A permanent control of water quality ofswimming pools located in the municipality should be monitored, as well as a review on the Sao PauloState legislation in force is required, and also the inclusion of new parameters.(AU)