|
Major causes |
Subclasses |
Typical examples |
Control methods |
|---|---|---|---|
|
Particulates |
Solids |
Dust, smoke, fumes, fly ash, Pb |
Sedimentation, centrifugation, impaction, filtration, fabric filters, electrostatic precipitator, wet scrubber |
|
Liquids |
Mist, spray |
||
|
Gases (organic) |
Hydrocarbons (HCs) |
Hexane, benzene, ethylene, methane |
Adsorption, absorption, stripping, condensation, combustion |
|
Aldehydes and ketones |
Formaldehyde, acetone |
||
|
Other organics |
Actone, chlorinated hydrocarbons |
||
|
Gases (inorganic) |
Oxides of carbon |
CO, CO2 |
|
|
Oxides of sulfur |
SO2, SO3 |
||
|
Oxides of nitrogen |
NO2, NO3 |
||
|
Other inorganics |
O3, H2S, HF, NH3 , Rn |
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