What is bromate?

Bromate is specifically recognized as a byproduct of drinking water disinfection processes, particularly when ozone is used as a disinfectant. During the ozonation of bromide-containing waters, bromate can form through chemical reactions. This occurs because ozone reacts with the naturally present bromide ions in the water, leading to the production of bromate, which can have harmful health implications if consumed in significant concentrations.

The formation of bromate is an important consideration in water treatment facilities, as it highlights the need for careful monitoring and management of disinfection practices. Regulatory agencies have set limits on bromate levels in drinking water because it is classified as a probable human carcinogen.

Understanding bromate's nature as a byproduct emphasizes the importance of balancing effective disinfection methods with the need to minimize the formation of harmful substances. This balance is a critical aspect of providing safe drinking water to the public.