aData from EPA, Compilation of Air Pollutant Emission Factors, AP-42, Fifth ed., U.S. Environmental Protection Agency, U.S. Government Printing Office, Washington, D.C., January 1995. Tons are short tons. To convert from lb/ton to kg/Mg, multiply by 0.5. Emission factors are pounds of pollutant per ton of coal combusted as fired. ESP, electrostatic precipitator. ^Expressed as aerodynamic equivalent diameter.

cA = coal ash weight percent (wt.%), as fired; for example, if coal ash weight is 2.4%, then A = 2.4.

dEstimated control efficiency for multiple cyclones is 94%; for ESPs, 99.2%. eThese values are estimates based on data from a controlled source. f Insufficient data.

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