It takes your breath away. Bellerive said if water is sprayed on the spill immediately the danger would be reduced because water neutralizes the vapor. He also added that anhydrous ammonia isn't as dangerous as other chemicals being transported. It's a safer commodity than propane. Professor Dibble agrees that propane is potentially more dangerous.
Propane is far more dangerous.
The explosion hazard is tremendous. Regional fire chief Fred Millar said firefighters are trained to recognize whether hazardous materials are involved in an accident. If there was an ammonia spill a fast response with water would be crucial. The theory is to stay indoors, close your windows and restrict air movement in your house.