What is a common indicator of a chlorine leak in a facility?

The odor of chlorine in the air is a common indicator of a chlorine leak in a facility. When chlorine gas is released, it carries a distinct, pungent smell that is often associated with swimming pools and disinfection processes. This characteristic odor serves as a warning sign that chlorine levels may be unsafe and that a leak might be present, prompting immediate action to ensure safety protocols are followed.

In contrast, while unusual sounds from equipment, presence of yellow residue, and fluctuations in water temperature may indicate other types of issues in a facility, they do not specifically point to a chlorine leak. It's essential for personnel working in facilities that use chlorine to be trained to recognize this odor, as it is a key indicator of potential danger and requires urgent attention.