The ___________ zone is the area of highest known hazard.

The ___________ zone is the area of highest known hazard.

• A. Hot/exclusion
• B. Warm zone
• C. Cold zone
• D. Safe zone

Answer: (A)

Hazmat zones are arranged by how dangerous the area is to people nearby. The area of highest known hazard is the hot/exclusion zone, which surrounds the release itself and any places where contamination is present. In this zone the material concentration is greatest, so exposure risk is highest, and entry is tightly restricted to trained personnel wearing the proper PPE. The warm zone lies between the hot zone and the cold zone and is where decontamination happens. It serves as a buffer to reduce contamination before responders or equipment move toward the clean area, but there can still be residual contamination there. The cold zone is kept away from the contamination and houses support operations, command, and medical activities in a safer, non-contaminated environment. The term safe zone isn’t typically used to describe the contaminated area; when used, it implies a non-contaminated area. So, the hot/exclusion zone is the area with the highest hazard.

Hazmat zones are arranged by how dangerous the area is to people nearby. The area of highest known hazard is the hot/exclusion zone, which surrounds the release itself and any places where contamination is present. In this zone the material concentration is greatest, so exposure risk is highest, and entry is tightly restricted to trained personnel wearing the proper PPE.

The warm zone lies between the hot zone and the cold zone and is where decontamination happens. It serves as a buffer to reduce contamination before responders or equipment move toward the clean area, but there can still be residual contamination there. The cold zone is kept away from the contamination and houses support operations, command, and medical activities in a safer, non-contaminated environment. The term safe zone isn’t typically used to describe the contaminated area; when used, it implies a non-contaminated area. So, the hot/exclusion zone is the area with the highest hazard.