People working with ammonia may become desensitized and not be able to detect ammonia at low concentrations. Also, exposure levels which are tolerated by the average person may cause respiratory damage to others. The concentrations below are from ammonia in air by volume.
1 to 5 parts per million (ppm)
1 to 5 parts per million (ppm)
Fortunately, ammonia has an odor threshold of about 20 ppm which is substantially below the IDLH so most people will seek relief well below that which would cause adverse health affects.
Fortunately, ammonia has an odor threshold of about 20 ppm which is substantially below the IDLH so most people will seek relief well below that which would cause adverse health affects.
Time-weighted average concentrations for up to 10-hour workday during a 40-hour workweek is 25 ppm or 18 mg ammonia per cubic meter of air.
Time-weighted average concentrations for up to 10-hour workday during a 40-hour workweek is 25 ppm or 18 mg ammonia per cubic meter of air.
15 minute time weighted average that should not be exceeded at any time during the work day is 35 ppm or 27 mg ammonia per cubic meter of air.
15 minute time weighted average that should not be exceeded at any time during the work day is 35 ppm or 27 mg ammonia per cubic meter of air.
50-100 ppm. During a short exposure at 150 to 200 ppm a person will experience general discomfort and eye tearing with no lasting effects.
