[Retric]

Except the risk of fire / explosion is lower. NFPA 704 for gasoline is 1 Health, 3 fire, 0 Instability where Ammonia is 3 Health, 1 fire, 0 Instability

Major spills of either are dangerous but rare compared to how much is being created and transported. We’re only ~5x as much gasoline vs Ammonia today. Considering most cars would be EV’s I suspect the total amount of Ammonia produced even with widespread adoption isn’t going to change by that much. Say Long haul trucks, heavy equipment, aircraft etc.

PS: Which isn’t to say Ammonia is actually a good fuel, the only thing I can think that actually used the stuff was the X-15. So it would need significant economic advantages to end up adopted.