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Presenter warns against using vehicles as refuge; describes decontamination and shelter-in-place tactics
Summary
Marcus Ettis advised sheltering upwind/uphill rather than sheltering in vehicles, outlined first-aid for ammonia exposure (flush 15–30 minutes), and cautioned against untested industry dumping tactics that can create ammonia hydroxide hazards.
Marcus Ettis told the committee that vehicles are not reliable refuge in an ammonia release and that sheltering in place upwind or uphill is generally the safer option for the public. He recommended that first responders and the public prioritize removing people from the hot zone and administer first aid where needed, including flushing liquid contact with water for 15–30 minutes.
Ettis cautioned fire departments and facility operators against certain unwise response practices, citing outdoor emergency dump manifolds and 'dump-to-water' approaches as potentially creating ammonia hydroxide hazards. He also noted decontamination risks such as hypothermia from prolonged water drenching and advised care when clothing is frozen to the skin.
