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Intensive water quality monitoring in a Taiwan bathing beach

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Abstract

A total of 357 water samples were collected from a public beach in northern Taiwan during beach season, and the densities of enterococci were analyzed by Enterolert methods. The mean enterococci level was 356 MPN/100 ml and ranged from <10 to 2,005 MPN/100 ml, which was classified as high contamination level according to the WHO water quality guideline (95 percentile >1,000 MPN/100 ml). Most of the deteriorated water quality conditions occurred during rainfall. By excluding data from the rain days, the overall beach water quality would be considered in the moderate contamination level (95 percentile 200–1,000 MPN/100 ml). Among the selected microbiological parameters tested, the densities of total coliforms and enterococci exhibited the highest correlation (r = 0.449, p = 0.009), followed by the concentrations of total coliforms and fecal coliforms (r = 0.403, p = 0.02). Nonetheless, no significant correlation was found between enterococci and fecal coliform levels (r = 0.197, p = 0.271).

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Correspondence to Bing-Mu Hsu.

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Hsu, BM., Huang, YL. Intensive water quality monitoring in a Taiwan bathing beach. Environ Monit Assess 144, 463–468 (2008). https://doi.org/10.1007/s10661-007-0009-4

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  • DOI: https://doi.org/10.1007/s10661-007-0009-4

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