What are trihalomethanes (THMs) considered?

Trihalomethanes (THMs) are indeed considered by-products of water disinfection. When chlorine or other disinfectants are used to kill bacteria and other pathogens in drinking water, they can react with organic matter naturally present in the water. This reaction can lead to the formation of THMs, which are then released into the treated water supply.

The formation of THMs is a significant concern because some of these compounds are harmful and may pose health risks to humans, leading to regulations concerning their concentrations in drinking water. As a result, understanding their formation and implications is crucial for both public health and environmental safety in water supply management.