Last data update: Apr 18, 2025. (Total: 49119 publications since 2009)
Records 1-1 (of 1 Records) |
Query Trace: Carter BC[original query] |
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Pool water quality and prevalence of microbes in filter backwash from metro-Atlanta swimming pools
Murphy JL , Hlavsa MC , Carter BC , Miller C , Jothikumar N , Gerth TR , Beach MJ , Hill VR . J Water Health 2018 16 (1) 87-92 During the 2012 summer swim season, aquatic venue data and filter backwash samples were collected from 127 metro-Atlanta pools. Last-recorded water chemistry measures indicated 98% (157/161) of samples were from pools with >/=1 mg/L residual chlorine without stabilized chlorine or >/=2 mg/L with stabilized chlorine and 89% (144/161) had pH readings 7.2-7.8. These water quality parameters are consistent with the 2016 Model Aquatic Health Code (2nd edition) recommendations. We used previously validated real-time polymerase chain reaction assays for detection of seven enteric microbes, including Escherichia coli, and Pseudomonas aeruginosa. E. coli was detected in 58% (93/161) of samples, signifying that swimmers likely introduced fecal material into pool water. P. aeruginosa was detected in 59% (95/161) of samples, indicating contamination from swimmers or biofilm growth on surfaces. Cryptosporidium spp. and Giardia duodenalis were each detected in approximately 1% of samples. These findings indicate the need for aquatics staff, state and local environmental health practitioners, and swimmers to each take steps to minimize the risk of transmission of infectious pathogens. |
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