Table 1.

Emissions factors and transaction costs for CO₂ and criteria air pollutants.

	Emission factor^{^z}
	Electricity kg/MWh	Natural gas lb/MBtu	Control $/kg
CO₂	181	75.7	0.033^{^y}
NO₂	0.373	0.0797	11.03^{^x}
PM₁₀	0.025	0.0049	6.98^{^x}
VOCs	0.023	0.0035	6.13^{^x}

↵z U.S. Environmental Protection Agency 1995.
↵y California Energy Commission 1994 ($30/ton).
↵x California EPA, 1998.