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O uso de areias em pracas publicas para o entretenimento e uma pratica comum e e principalmente realizada por criancas e adolescentes. Mas se esta areia nao estiver em condicoes adequadas para sua utilizacao, pode trazer riscos a saude humana. O objetivo deste trabalho foi verificar a ocorrencia de coliformes em areias de recreacao localizadas em pracas publicas, na cidade de Palmas, Parana. O experimento foi realizado com areias de seis pracas publicas. As amostras foram processadas no laboratorio de Microbiologia do Instituto Federal do Parana, durante setembro a novembro de 2011. O metodo adotado para a pesquisa foi o de Tubos Multiplos e os resultados obtidos foram analisados e comparados com a Tabela do Numero Mais Provavel. Apenas a areia da praca localizada entre a Rua Pedro Cordes e a Rua Cacique Conda, no Bairro Lagoao, nao apresentou contaminacao por coliformes termotolerantes e totais. O local que teve um maior indice de contaminacao por coliformes termotolerantes foi a praca localizada na Rua Capitao Paulo Araujo, com a Rua Sete de Setembro no Bairro Santa Cruz. Ja a praca localizada no Parque da Gruta apresentou a maior contaminacao para coliformes totais. O restante apresentou pelo menos contaminacao por um dos grupos de coliformes. De modo geral, apenas uma praca esta apta para sua utilizacao, as demais estao improprias e merecem uma atencao maior pelas autoridades para melhorar sua qualidade higienico-sanitaria. Torna-se ainda necessario estabelecer uma efetiva legislacao de qualidade sanitaria para areias de recreacao, para que o controle delas seja realizado rotineiramente. Abstract Playing on sand playgrounds in public areas is an activity that is commonly performed by children and adolescents. Therefore, recreational sand in inadequate conditions is risky to human health. The aim of this study was to verify the occurrence of coliforms in sand playgrounds in public squares located in the city of Palmas, Parana. The experiment was conducted in six public squares. The samples were processed in the laboratory of Microbiology at Federal Institute of Parana, during September and November 2011. The multitube method was adopted for the research, and the results were analyzed and compared through the Table of the Most Probable Number. Only the square located between Pedro Cordes and Cacique Conda streets in Lagoao District showed no contamination by total and thermotolerant coliforms. The site that presented a higher rate of faecal coliform contamination was the Plaza located between Capitao Paulo Araujo and Sete de Setembro streets, at the District of Santa Cruz. The square located at Parque da Gruta presented the highest level of contamination by coliforms. The other places showed at least one point of contamination by one of the coliform groups. In general terms, only one square was appropriate for use. It is necessary more attention from the authorities to improve the sanitary and hygienic conditions of the rest of the squares, which are inadequate to use. It is also necessary to establish an effective health quality legislation concerning sands for playgrounds, in order to ensure routine control over their conditions.

ambiência

Análise microbiológica de areias de praças públicas da cidade de Palmas (PR) / Microbiological analysis of sands in public squares of the city of Palmas (PR)