Trihalomethanes in Water: What You Need to Know in 2023

by Jennifer Byrd / updated: August 22, 2022

Trihalomethanes (THMs) are chemical compounds that are often found in tap water disinfected by chlorine or chloramine. Trihalomethanes have a number of known health risks if high THM levels are consumed regularly for a long time.

This glossary discusses the origin and health effects of trihalomethanes. We’ve also shared how to detect THMs and how to protect your family from these contaminants in tap water.

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