What is the significance of monitoring residual chlorine levels?

Monitoring residual chlorine levels is essential for several reasons, primarily to ensure effective disinfection in water treatment processes. Chlorine is widely used to kill harmful microorganisms, including bacteria and viruses, in drinking water supplies. By tracking the levels of residual chlorine, water treatment facilities can confirm that sufficient disinfectant remains in the water to protect against any pathogens that may persist after the initial treatment.

Additionally, maintaining appropriate chlorine levels is crucial for safety. Too little chlorine may lead to insufficient disinfection, risking public health, while excessive amounts can pose health hazards to consumers. Thus, the monitoring process ensures that chlorine levels are within safe limits for human consumption while also confirming that effective disinfection has occurred throughout the distribution system. This dual focus on safety and efficacy underscores the significance of monitoring residual chlorine levels in water treatment and public health protection.