What is a concern when using chlorine in water treatment?

The concern of chlorine gas hazards in water treatment is significant because chlorine is a toxic gas that can pose serious health risks to workers handling it and to the surrounding community if leaks occur. Proper handling and storage practices are crucial to mitigate these risks, requiring training and safety equipment to ensure the safety of personnel who may be exposed.

The potential for harmful reactions with other chemicals, its corrosive properties, and the need for precautions during its transportation and usage further amplify the safety concerns associated with chlorine gas. Adequate ventilation in treatment facilities and emergency response plans are necessary to address these hazards effectively.

While cost, taste, and effectiveness against organic matter are relevant considerations in water treatment, the immediate health and safety risks posed by chlorine gas make this concern particularly critical in the context of safe drinking water practices.