Sanitary quality of sands from marine recreational beaches of São Paulo, Brazil
| Autor: | Ana Cristina Truzzi, Elayse Maria Hachich, Maria Inês Zanoli Sato, Marisa Di Bari, Claudia Condé Lamparelli, Maria Cristina L.S. Coelho |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Fecal streptococci
Veterinary medicine microbiological criteria Ecology Indicator bacteria sand Biology recreational areas Microbiology Coliform bacteria Fecal coliform fluids and secretions stomatognathic system Correlation analysis parasitic diseases Seawater Health risk Feces fecal indicators seawater |
| Zdroj: | Brazilian Journal of Microbiology v.36 n.4 2005 Brazilian Journal of Microbiology Sociedade Brasileira de Microbiologia (SBM) instacron:SBM Scopus-Elsevier |
| Popis: | A sanitary evaluation of sand and water from 16 beaches of Sao Paulo State, Brazil, was undertaken during spring of 1997 and summer of 1998. Ninety six samples each of wet and dry sand and seawater were collected and analysed for fecal indicator bacteria. A parasitological examination and Candida albicans analysis were also performed in sand samples and F-specific bacteriophages were determined in seawater. Statistical analysis of the results demonstrated higher concentrations of fecal coliforms and fecal streptococci in dry sand during summer. Correlation analysis indicated a significant relationship between fecal indicator densities in wet sand and seawater. There was a significant correlation between the densities of fecal coliforms and fecal streptococci for both types of sand, and this correlation was higher in wet sand. Cysts and eggs of parasites were detected in 4.2% of the samples and Candida albicans was isolated in 18% of the samples. The high concentrations of fecal indicators detected in sand during summer demonstrate that there is a health risk to the users of these recreational areas and suggest the necessity of some criteria for microbiological control. Preventive measures, such as education campaings and some management actions are important precautionary measures. |
| Databáze: | OpenAIRE |
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