When surveying a scene with hazardous materials, where should the first responder position themselves?

Positioning oneself upwind or upstream of a scene involving hazardous materials is critical for ensuring safety. This strategic placement allows a first responder to avoid exposure to potentially harmful vapors, gases, or liquids that may be released into the environment.

When a responder is upwind or upstream, they are situated in a location where prevailing winds or water flow will carry the hazardous materials away from them. This position minimizes the risk of inhalation or contact, which is crucial in assessing and managing the situation without becoming an additional victim. Furthermore, being upwind allows responders to observe the scene and gather necessary information to effectively plan their approach while maintaining a safe distance from the source of danger.

Being positioned downwind would expose the responder to the hazardous material, while being in the middle of the scene or at the nearest safe building could compromise safety and response effectiveness. Therefore, upwind/upstream positioning is the most advisable approach for first responders surveying hazardous material situations.