What is "chloramines"?

Chloramines are a type of disinfectant that form when ammonia is introduced to chlorine in water treatment processes. This reaction creates a compound that is effective in killing bacteria and other pathogens, making it a common choice for disinfection in municipal water systems. Chloramines are often used as a secondary disinfectant to maintain water quality as it travels through pipes to consumers.

In contrast, the other options refer to different processes or substances related to water treatment and quality management. The option about enhancing water taste does not accurately describe chloramines, which primarily serve as a disinfectant rather than an agent for improving taste. A type of water filtering system describes physical methods of removing impurities from water, which is distinct from the chemical treatment involving chloramines. Lastly, a method for testing water pH pertains to assessing acidity or alkalinity, which is not related to the disinfection process that involves chloramines. Thus, the definition of chloramines as a disinfectant formed by the reaction of ammonia with chlorine is the most accurate and relevant description.