after inhaling more than a certain amount of ammonia is known to all, will cause harm to human body, the standard of ammonia concentration in the air has a regulation?
What is the allowable concentration in air?
Ammonia is a colorless and irritating alkaline gas.
Mainly used in leather, dye, chemical fertilizer, pharmaceutical and other industrial refrigerants, often by accident and inhalation poisoning.
When the concentration of ammonia in the air reaches 500-700mg/m, serious respiratory poisoning symptoms can be found.
If up to 3500-7500mg/m, can appear “flash” death.
But actually the outdoor air standard does not have ammonia project, this is because ammonia gas in the air for a very short time, even indoors can be completely eliminated within six months.
But ammonia still has certain toxicity, the best concentration is not more than 10%.