Is chlorinated pool water safe to swallow by accident?
Filter your water. A carbon filter removes chlorination byproducts. It is a simple way to lower any residual risk.
What's actually in it
Chlorine and chloramine are added to municipal water supplies to kill pathogens. They are effective at preventing waterborne disease and are generally safe at treatment levels.
The concern is with disinfection byproducts (DBPs): chemicals formed when chlorine reacts with organic matter in water. Trihalomethanes (THMs) and haloacetic acids (HAAs) are the main DBPs. Long-term high exposure to some DBPs has been associated with bladder cancer in occupational studies.
What the research says
A 2026 study in anal bioanal chem found that online ahead Optimized methods for adsorbable organic halides (AOX) and halogenâspecific speciation for tracking disinfection by-products from source to tap..
VĂ©lia F(1)(2), Thomas MF(2), Demelas C(1), Vassalo L(1), Lou.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Optimized methods for adsorbable organic halides (AOX) and halogenâspecific speciation for tracking disinfection by-products from source to tap. | Anal Bioanal Chem | 2026 |
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