That’s nice. Where’s the ammonia coming from?
Ammonia has been used in Farm refrigeration for a very long time.
When released, it is very toxic. Can be fatal.
Also known to explode when released in the right conditions - indoors or confined space.
Anhydrous ammonia is very toxic; it is still used regularly in the RV industry as refrigerant (any dual-use refrigerator in an rv has it). Nasty stuff.