What is the Hazards level of amonia Gas in Environment?

Question

I want to know beyond limites of amonia gas in environment or the hazards level of aamonia gas in Environment........

Answer 1

Safe Exposure Levels
The Occupational Safety & Health Administration (OSHA) has set a limit of 25 parts-per-million (ppm) in the workplace during an 8-hour shift and a short-term limit (15 minutes) of 35 ppm. International standards for ammonia exposure are similar to those in the U.S. The effects of ammonia exposure range from irritating smells to life-threatening situations.

Exposure Risks
Reliable ammonia detection ensures both personnel safety and product quality. The nose may detect ammonia in concentrations as low as 5 ppm. Typical exposure symptoms are irritation of the eyes, throat and respiratory organs. At a few hundred ppm, irritation of the mucous membrane of the eyes occurs. Breathing is intolerable at about 1000 ppm and vision may be impaired. The risk of fatality rapidly increases at concentrations of around 2500 ppm.