Where should decontamination operations ideally be set up?

• A. Downwind and downstream from the hot zone
• B. Upwind, uphill, and upstream from the hot zone
• C. On-site at the hot zone
• D. In a controlled indoor environment

Answer: (B)

Setting up decontamination operations upwind, uphill, and upstream from the hot zone is crucial for ensuring the safety of both the response personnel and the surrounding environment. This positioning minimizes the risk of contaminating areas that have not been exposed to hazardous materials. By situating decontamination in this manner, it ensures that any potentially hazardous agents are carried away from the clean areas and the public, which is vital in maintaining a safe perimeter around the incident.

This strategic placement also allows for effective management of contaminated runoff, safeguarding against cross-contamination with personnel who have not yet undergone decontamination. It creates a controlled entry point for personnel exiting the hot zone, allowing for the effective separation of clean and contaminated zones and reducing the likelihood of personnel spreading contaminants further during the decontamination process.