If a chlorine cylinder is leaking, what should be done first?

If a chlorine cylinder is leaking, the first priority is to ensure personal safety by moving to a safe area. Chlorine is a toxic and hazardous gas that can pose serious health risks, including respiratory issues and skin irritation. Being in proximity to a chlorine leak can lead to immediate danger, so the initial action should be to distance oneself from the source of the leak.

Once in a safe location, the appropriate steps can be taken, such as calling emergency services or alerting trained personnel who can manage the leak safely. It is critical to prioritize personal safety over attempts to address the leak directly or perform repairs, as these actions could increase the risk of exposure or exacerbate the situation.