Trihalomethanes are byproducts of chlorination that may increase what type of health risk?

Trihalomethanes (THMs) are chemical compounds that are formed as byproducts when chlorine is used to disinfect water, particularly in the treatment of drinking water. The presence of these compounds in drinking water has raised concerns due to their potential health effects. Research has shown that long-term exposure to trihalomethanes can be associated with an increased risk of various types of cancer, particularly bladder cancer.

This correlation arises because THMs can be carcinogenic, meaning they have the potential to contribute to the development of cancer within the body. The formation of these byproducts occurs during the reaction of chlorine with natural organic matter found in water sources, leading to a significant public health concern regarding water safety.

In contrast, other potential health risks, such as heart disease, diabetes, and neurological issues, have not been strongly linked to THMs in the same way as cancer. The focus of regulatory bodies and health organizations on minimizing THM levels in drinking water highlights the importance of addressing cancer risks associated with these contaminants.