Shun US beaches to have clean and uncontaminated bathNovember 14th, 2007 - 2:13 am ICT by admin
Graczyk and colleagues sampled water from Maryland’s beaches on Wednesdays and Sundays for 11 consecutive weeks during the summer of 2006.
They tested for Cryptosporidium parvum and Giardia lamblia, protozoans in human faeces that can cause severe, and sometimes fatal, gastrointestinal problems.
The pathogens lurked in 30 per cent of samples midweek, but in almost 60 per cent at weekends, levels strongly associated with the number of bathers in the water.
Graczyk called for a proper testing of water, especially when the number of people are higher.
“The water should be tested when the numbers of people are higher. A lot of beaches would be closed if they tested on weekends,” New Scientist.com quoted Graczyk, as saying.
Gracyzk believes bathers stir up sediment that already contains the microbes, which enter recreational waters primarily through human faeces, either directly, through sewage or from surface run-off after heavy rains.
Gracyzk will present his findings next month in Philadelphia at the American Society of Tropical Medicine and Hygiene meeting. (ANI)
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Tags: american society of tropical medicine and hygiene, bathers, beaches, consecutive weeks, cryptosporidium parvum, gastrointestinal problems, giardia lamblia, health inspectors, heavy rains, human faeces, johns hopkins university, microbes, midweek, new scientist, pathogens, protozoans, recreational waters, testing practices, thaddeus, tropical medicine and hygiene