Ingredient
Total Trihalomethanes
What is Total Trihalomethanes?
Total Trihalomethanes (TTHMs) are chemical compounds that can form as byproducts when chlorine or other disinfectants used to treat drinking water react with natural organic matter in the water. They are typically measured as a group, including chloroform, bromodichloromethane, dibromochloromethane, and bromoform.
TTHMs are used in water quality assessment as indicators of potential water contamination. There is ongoing research into their health effects, with some studies suggesting a potential link between high levels of TTHMs and certain health risks, although the evidence is not entirely conclusive.
When you see 'Total Trihalomethanes' listed on a product label, it generally indicates that the water in the product has been subjected to municipal disinfection processes, which might lead to the formation of these byproducts.
Commonly found in: Bottled water, Municipal water supplies, Swimming pool water, Industrial water treatment, Water filtration systems
What to watch
- High levels of TTHMs in drinking water have been assessed for potential links to cancer and reproductive issues, although findings are not consistent across all studies.
- Some regulatory bodies have set limits on permissible levels of TTHMs in drinking water to mitigate potential health risks.
The FDA and EPA regulate the levels of TTHMs allowed in drinking water to minimize potential health risks.
Research on TTHMs has shown potential health risks at high exposure levels, but there is no universal consensus on the severity of these risks.
TTHMs are not derived from animal products and are typically considered vegan-friendly.
Sources: Drinking Water Contaminants – Standards and Regulations
Scout's take
Total Trihalomethanes detected at approximately 9× the legal limit. Chronic exposure to THMs is linked to reproductive system damage and hormone disruption, in addition to long-recognized cancer risk.
More from Scout's analyses
Total Trihalomethanes detected — chronic exposure is linked to reproductive harm and increased cancer risk.
from the analysis of Essentia Water Ionized Alkaline WaterFound in 2 products
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