When monitoring water quality, what is the purpose of measuring chlorine levels?

Measuring chlorine levels is crucial for assessing the effectiveness of disinfection in water treatment processes. Chlorine is a widely used disinfectant in water systems because it effectively kills bacteria, viruses, and other pathogens that can cause waterborne diseases. By monitoring chlorine levels, water operators can ensure that sufficient amounts are present throughout the distribution system, confirming that water remains safe for consumption.

Maintaining appropriate chlorine levels is necessary for preventing contamination and safeguarding public health. If chlorine levels are too low, it indicates that the disinfection process may be ineffective, increasing the risk of pathogen survival. Conversely, excessively high levels may indicate an over-chlorination issue, which can lead to unpleasant tastes and potential health concerns. Therefore, regular monitoring of chlorine is integral to maintaining optimal water quality and ensuring that the disinfection process is functioning as intended.