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Δευτέρα 20 Μαΐου 2013

Excited to go swimming this summer? This might make you reconsider


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Chlorine is supposed to take care of most of the microbes floating around in pools, but human waste, it seems, is stubbornly resistant to being sanitized.
That’s the conclusion of a group of  researchers from the Centers for Disease Control (CDC), who collected water samples from 161 filters in public and private swimming pools, as well as water parks in Atlanta last summer. What they found trapped in those filters was enough to make swimmers think twice before logging their laps. More than half of the samples were contaminated with E. coli, which the investigators say comes from one primary source — swimmers pooping in the pool.

The study, published in the latest Morbidity and Mortality Weekly Report, specifically looked at pools in Atlanta, but the researchers say such contamination is likely a widespread problem in U.S. pools, thanks to swimmers not washing themselves off before taking a dip. According to the scientists, each of us carries about 0.14 grams of fecal material into the pool — and that doesn’t include accidents or cases of diarrhea. Among municipal pools, the genetic testing for pathogens detected E. coli in 70% of the filters, while 66% of the water parks contained the bacteria and 49% of pools in private clubs showed evidence of the contamination....[...]
 
 
 

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