What is a key containment measure in hazmat response?

• A. Evacuate areas affected by hazardous materials
• B. Isolate to other areas
• C. Notify the press
• D. Close the facility

Answer: (B)

Containment means keeping the hazmat from spreading beyond the incident area. The best way to do this is to isolate the incident to the affected zones, creating clear boundaries and restricting access so people, equipment, and air flow don’t carry contamination into clean areas. Establishing exclusion zones, using barriers and controlled ventilation as needed, and keeping responders within a designated hot/warm/cold zone all help confine the material and give responders a safe space to stop the release and decontaminate.

Evacuating people protects those individuals by moving them away from danger, but it’s a protective action rather than a containment measure. Notifying the press isn’t related to containing the hazard, and closing the facility might be part of overall incident control but doesn’t by itself confine the material.