RESPIRATORYCAS 67-56-1
Methanol
415k lb · +1% YoY
Methanol concentrations are up 16% since 2010.
GENERALCAS 7664-41-7
Ammonia
136k lb · -19% YoY
Ammonia concentrations are roughly unchanged from 2010.
GENERALCAS 7783-06-4
Hydrogen sulfide
86k lb · -14% YoY
Hydrogen sulfide concentrations are up 40% since 2012.
GENERALCAS N511
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
57k lb · +311% YoY
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than doubled since 2010.
RESPIRATORYCAS 1319-77-3
Cresol (mixed isomers)
39k lb · -18% YoY
Cresol (mixed isomers) concentrations have more than doubled since 2010.
CARCINOGENCAS 75-07-0
Acetaldehyde
36k lb · -19% YoY
Acetaldehyde concentrations have more than halved since 2010.
RESPIRATORYCAS 7647-01-0
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
35k lb · -10% YoY
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2010.
GENERALCAS 7664-93-9
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
28k lb · -18% YoY
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have fallen 26% since 2018.