The use of chlorine for disinfection results in numerous brominated and chlorinated disinfection byproducts (DBPs) in tap water. Evidence has shown that brominated DBPs are significantly more toxic than their chlorinated analogues. In a previous study, with a novel precursor ion scan approach using electrospray ionization-triple quadrupole mass spectrometry, the whole pictures of polar brominated DBPs in simulated tap water samples without and with boiling were revealed; it was found that most polar brominated DBPs could decompose via decarboxylation or hydrolysis during boiling, and boiling of simulated tap water for a few minutes significantly reduced the overall levels of brominated and chlorinated DBPs, thus reducing the cytotoxicity of chlorinated tap water to mammalian cells. In this study, we further investigated the effect of boiling on halogenated DBPs and their developmental toxicity in �real� tap water samples. The study suggests a simple way to reduce human exposure to halogenated DBPs through tap water ingestion.

Effect of boiling on halogenated DBPs and their developmental toxicity in real tap water

248th National Meeting (2014)

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