Disinfection byproducts · in your tap water
Another brominated TTHM
Forms in the same chlorine + bromide reactions as BDCM. EPA lists it as a possible human carcinogen.
Comes with BDCM. Same filtration removes both.
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Every source below was checked to make sure the link works and backs the claim it's next to. These are the primary regulators and peer-reviewed studies — not our opinion.
EPA Group C 'possible human carcinogen'; IARC Group 3; bromide-driven formation.
Lists the TTHM MCL of 0.080 mg/L (80 ppb) and HAA5 MCL of 0.060 mg/L (60 ppb).
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Get my free water report Book a free checkupThis page is general water-quality education, not medical advice. Health classifications and limits are attributed to the EPA, EWG, IARC, ATSDR/CDC, WHO and the cited studies. Contaminant levels vary by water system and home — the only way to know what's in your water is to test it. Prepared by SwiftPro Heating, Cooling & Plumbing.