RESPIRATORYCAS 7647-01-0
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
120k lb · +211% YoY
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than doubled since 2010.
GENERALCAS 7664-41-7
Ammonia
6k lb · -8% YoY
Ammonia concentrations are roughly unchanged from 2018.
RESPIRATORYCAS 108-88-3
Toluene
2k lb · +80% YoY
Toluene concentrations have more than doubled since 2010.
RESPIRATORYCAS 1330-20-7
Xylene (mixed isomers)
2k lb · +85% YoY
Xylene (mixed isomers) concentrations have more than doubled since 2010.
RESPIRATORYCAS 75-05-8
Acetonitrile
841 lb · +514% YoY
Acetonitrile concentrations are up 68% since 2012.
RESPIRATORYCAS 67-56-1
Methanol
736 lb · +66% YoY
Methanol concentrations are up 47% since 2010.
CARCINOGENCAS 50-00-0
Formaldehyde
574 lb · +2% YoY
Formaldehyde concentrations are up 15% since 2010.
CARCINOGENCAS 75-09-2
Dichloromethane
541 lb · +13% YoY
Dichloromethane concentrations are roughly unchanged from 2010.