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What's in your water?: Disinfectants create toxic by-products
Date:3/31/2009

Foundation Center called WaterCAMPWS at the University of Illinois. "We're working with engineers and chemists to develop new technologies that will disinfect water, that will desalinate water, that will remove pharmaceuticals from water but in so doing, don't generate by-products that are even more toxic than the things you're trying to remove."

Ironically, the DBPs that are regulated by the EPA tend to be some of the least toxic DBPs in Plewa's study. "We've found that the emerging DBPs are much more genotoxic and much more cytotoxic. But I can't fault EPA because these data were not present at the time and in fact the development of the database of over 70 DBPs has been done in concert with our colleagues at the federal EPA."

Plewa said that until new technologies are engineered to safely disinfect the water in public pools, education is needed to encourage people to bathe or shower before entering a public pool. "It's the organic material that gets in the pool that is disinfected and then recirculated over and over again. That's why we call swimming pools disinfectant by-product reactors. But by public education, by personal behavior, there should be ways that we can reduce the levels of the dissolved organic material that should reduce the level of DBPs."

Plewa, along with a team of scientists received a United States Environmental Protection Agency Science and Technology award for their paper Occurrence, genotoxicity and carcinogenicity of regulated and emerging disinfection by-products in drinking water: A review and roadmap for research. It was published in the scientific journal Mutation Research.


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Contact: Debra Levey Larson
dlarson@illinois.edu
217-244-2880
University of Illinois at Urbana-Champaign
Source:Eurekalert

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