What are disinfection by-products?

Disinfection by-products (DBPs) are formed when disinfectants such as chlorine, chloramines, and ozone react with natural organic matter in drinking water. The EPA regulates some DBPs, such as total trihalomethanes (TTHMs) and haloacetic acids (HAA5) to minimize their health risks. A challenge faced in drinking water disinfection is to protect the public from waterborne diseases while reducing public exposure to DBPs.

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1. Why is drinking water disinfected?
2. What are the drinking water disinfection requirements in Texas?
3. What is chloramine?
4. Why is my public water system using chloramine?
5. What are disinfection by-products?
6. Is chloramine safe?
7. What is a free chlorine conversion?
8. Why is my water system conducting a free chlorine conversion?
9. Are there any disadvantages to a free chlorine conversion?