Ammonia (NH₃) is highly toxic, corrosive, and conditionally flammable. Leak response protocols focus on rapid isolation, exposure control, and responder safety, in line with standard industrial and regulatory guidance. 1. Immediate Emergency Actions ➜ Evacuation Move upwind and uphill immediately. Although ammonia is lighter than dry air, it often forms a dense white vapor cloud in humid conditions that can remain close to the ground. ➜ Shelter-in-Place If evacuation is not possible: Stay indoor