Which of the following actions is critical immediately after identifying an HazMat leak?

Evacuating the surrounding area is a critical action immediately after identifying a hazardous materials leak for several reasons. The primary concern during a HazMat incident is the safety of individuals both on the scene and in the surrounding vicinity. A leak can lead to exposure to harmful substances, which may pose immediate health risks.

By evacuating the surrounding area, first responders help prevent potential harm to the public, allowing for a safer response environment. This action also creates a buffer zone, ensuring that responders can effectively and safely manage the situation without the risk of exposure to bystanders.

While starting clean-up procedures, gathering feedback from witnesses, and conducting a full investigation are all important components of managing a HazMat incident, they come after ensuring the immediate safety of individuals in the vicinity. The evacuation is the foremost priority to reduce risk and protect life.