Engineering Board Exam Reviewer · Environmental Engineering · medium
Trihalomethanes (THMs) in drinking water are formed when:
- Alum reacts with calcium
- Ozone reacts with iron
- Chlorine reacts with natural organic matter
- Fluoride reacts with sodium
Answer
C. Chlorine reacts with natural organic matter
Solution
THMs are disinfection by-products and are suspected carcinogens.
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