Last reviewed on November 2, 2011 at 10:05
Documentation of California's Greenhouse Gas Inventory
(First Edition - Last updated on 11/19/2007)
♦ Category: Energy
IPCC: |
1A3di - Fuel Combustion Activities - Transport - Water-borne Navigation - International Water-borne Navigation (International Bunkers) |
Sector: |
Transportation : Water-borne : International Marine Bunker Fuel |
♦ Activity: Fuel combustion - Residual fuel oil
♦ Greenhouse gas: Methane ( CH4 )
► Year 1990 —
● Greenhouse gas emission estimate —
Amount: |
1,708 tonnes of CH4 Excluded (35,874 tonnes CO2 Eq.) |
Basis: |
Calculation |
Calculation: |
[Fuel combustion] * [Fuel density] * [Fuel CH4 emission] |
Reference: |
USEPA (2007). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2005. United States Environmental Protection Agency. EPA 430-R-07-002. Annex 3.2. Methodology for Estimating Emissions of CH4, N2O, and Indirect Greenhouse Gases from Mobile Combustion. April 15, 2007. Washington DC. http://www.epa.gov/climatechange/emissions/usgginv_archive.html |
● Activity level used in calculations —
Activity: |
Fuel combustion = 2,077,559,862 gal of Residual fuel oil |
Basis: |
Data |
Reference: |
This California Energy Balance Database (CALEB) value was adjusted by ARB staff based on additional information used for a complementary category. (CALEB: Murtishaw, S., De La Rue du Can, S,. Price, L., Masanet, E., and Simcich, M. (2005). California Energy Balance Database, September 12, 2005. Lawrence Berkeley National Laboratory, Berkeley, CA.) |
● Parameters and Constants used in calculations —
Parameter: |
Fuel CH4 emission = 0.23 g / kg |
Reference: |
USEPA (2007). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2005. United States Environmental Protection Agency. EPA 430-R-07-002. Annex 3.2. Methodology for Estimating Emissions of CH4, N2O, and Indirect Greenhouse Gases from Mobile Combustion. April 15, 2007. Washington DC. http://www.epa.gov/climatechange/emissions/usgginv_archive.html |
Parameter: |
Fuel density = 3.58 kg / gal |
Reference: |
USEPA (2007). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2005. United States Environmental Protection Agency. EPA 430-R-07-002. Annex 6: Additional Information. April 15, 2007. Washington DC. http://www.epa.gov/climatechange/emissions/usgginv_archive.html |
Constant: |
Global warming potential of CH4 = 21 |
Reference: |
IPCC (1996). Second Assessment Report. Climate Change 1995: WG I - The Science of Climate Change. Intergovernmental Panel on Climate Change; J.T. Houghton, L.G. Meira Filho, B.A. Callander, N. Harris, A. Kattenberg, and K. Maskell (eds.); Cambridge University Press. Cambridge, U.K. |
● Greenhouse gas excluded per unit activity —
Amount: |
0.822 g of CH4 per gal of Residual fuel oil 17.3 g of CO2eq. per gal of Residual fuel oil |