Emission Components

































































































 


Emission

 



Source

 


Effect

Green House Gas Potential Relative to CO2

CO2 (Carbon dioxide)

Complete combustion of carbon in fuel

Global Warming

1

CO (Carbon Monoxide)

Incomplete combustion of carbon in fuel

Smog

SO2 (Sulphur Dioxide)

Combustion of sulphur in fuel (Sulphur is NOT a component of natural gas)

Smog, Acid Rain

NOx (Nitrous Oxide)

By-product of most combustion processes

Acid Rain

N2O (Nitrous Oxide)

By-product of some combustion processes

Global Warming

310

VOCs (Volatile Organic Compounds)

Leakage and evaporation of liquid fuels

Smog

CH4 (Methane)

Natural Gas Leaks

Global Warming

21

H2O (Water Vapor)

Hydrogen in fuel mixing with oxygen in the combustion process

Localized Fog

Particulates (Dust, Soot, Fumes)

Unburned carbon from fuel, including ash and dirt

Smog, Respiratory Hazard

Trace Elements

Impurities in fuel

Unknown and Potential Carcinogens

Halogenated and Chlorinated Compounds

Compounds in fuel or combustion air containing halogens (Chlorine, fluorine, bromine and iodine)

Potential carcinogens, Global Warming


 


For a complete discussion about NOx, NOx Control and low-NOx Equipment, see Boiler Emissions Workshop

 
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