What are disinfection by-products, and why are they a concern?
Disinfection by-products (DBPs) form when chlorine or other disinfectants react with the organic material (from decomposed leaves and other vegetation) naturally found in drinking water sources. The two classes of DBPs usually measured in drinking water are trihalomethanes and haloacetic acids. Many DBPs have been shown to cause cancer and reproductive or developmental effects in animal studies. The level of DBPs permitted in drinking water is regulated by EPA and monitored by water treatment plants. To inquire about DBPs, contact your local water supplier.
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