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REGULATION FOR THE MANDATORY REPORTING OF GREENHOUSE GAS EMISSIONS - page 126 / 137

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(c) Carbon Dioxide Emission Factors for Transportation Fuels

The default carbon dioxide emission factors in Table 7 are provided for use with section 95125(i) of the regulation. These factors may only be used for vehicular emissions and should not be applied to stationary combustion sources.

Table 7. Carbon Dioxide Emission Factors for Transportation Fuels

Fuel

kg CO2/gallon

Aviation gasoline

8.24

Biodiesel

9.52

CA Low Sulfur Diesel

9.96

CA Reformulated gasoline, 5.7% ethanol

8.55

Crude Oil

10.14

Non-CA Diesel/Diesel No.2

10.05

Ethanol (E85)

6.10

Fischer Tropsch Diesel

9.13

Jet Fuel, Kerosene (Jet A or A-1)

9.47

Jet Fuel, Naphtha (Jet B)

9.24

Kerosene

9.67

Liquefied Natural Gas (LNG)

4.37

Liquefied Petroleum Gas (LPG)

5.92

Methanol

4.10

Motor Gasoline (Non CA and off-road)

8.78

Propane

5.67

Residual Oil

11.67

Fuels With Other Units Of Measure

Natural Gas (CNG) per therm

5.28

Natural Gas (CNG) per gasoline gallon equivalent

6.86

Hydrogen per kg

0.00

Note: Emission factors are based on complete combustion and high heating value (HHV).

Source: California Energy Commission, Inventory of California Greenhouse Gas Emissions and Sinks: 1990-1999 (November 2002); Energy Information Administration, Emissions of Greenhouse Gases in the United States 2000, (2001), Table B1, page 140, see http://www.eia.doe.gov/oiaf/1605/ggrpt; propane and butane emission factors and fractions oxidized from U.S. Environmental Protection Agency, Compilation of Air Pollutant Emission Factors, AP- 42, Fifth Edition, see http://www.epa.gov/ttn/chief/ap42/index.html. Methanol emission factor is calculated from the properties of the pure compounds; the fraction oxidized is assumed to be the same as for other liquid fuel.

Appendix A-10

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