Which compound is the principal trihalomethane in disinfection byproducts?

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Multiple Choice

Which compound is the principal trihalomethane in disinfection byproducts?

Explanation:
Chlorination of natural organic matter commonly produces a mix of trihalomethanes, and chloroform tends to be the most abundant species under typical drinking water conditions, especially when bromide is not present in significant amounts. This is because the formation pathways favor trihalomethanes with chlorine (CHCl3) when bromide levels are low. When bromide ions are present, brominated THMs like bromodichloromethane, dibromochloromethane, and bromoform can become more prevalent, but chloroform usually remains the dominant THM overall. So the principal trihalomethane formed in disinfection byproducts is chloroform.

Chlorination of natural organic matter commonly produces a mix of trihalomethanes, and chloroform tends to be the most abundant species under typical drinking water conditions, especially when bromide is not present in significant amounts. This is because the formation pathways favor trihalomethanes with chlorine (CHCl3) when bromide levels are low. When bromide ions are present, brominated THMs like bromodichloromethane, dibromochloromethane, and bromoform can become more prevalent, but chloroform usually remains the dominant THM overall. So the principal trihalomethane formed in disinfection byproducts is chloroform.

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