What is the primary concern with elevated levels of trihalomethanes in drinking water?

Elevated levels of trihalomethanes (THMs) in drinking water are primarily concerning because they are classified as potential carcinogens. Trihalomethanes are a group of chemical compounds that can form when chlorine and other disinfectants react with organic matter in water. Long-term exposure to these compounds has been associated with an increased risk of certain types of cancer. This health risk necessitates monitoring their levels in drinking water to ensure public safety.

While concerns about taste and algae growth are valid in different contexts, they do not address the significant health implications associated with trihalomethanes. Low dissolved oxygen levels in water may indicate other issues, but they do not directly relate to the presence of THMs or their associated health risks. Therefore, the focus on their potential carcinogenic nature is crucial in water quality management and public health considerations.