Last reviewed on 06-22-2018

Documentation of California's Greenhouse Gas Inventory (11th Edition - Last updated on 11-06-2019)

♦ Category: Energy

IPCC: 1A3aii - Fuel Combustion Activities - Transport - Civil Aviation - Domestic Aviation
Sector: Transportation : Aviation : Domestic Air transport

♦ Activity: Fuel combustion - Aviation gasoline

♦ Greenhouse gas: Nitrous oxide ( N2O )

► Year 2002 —

● Greenhouse gas emission estimate —

Amount: 2.88 tonnes of N2O Emitted (858.19 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Fuel combustion] * [Heat content] * [Fuel N2O emission]
Reference: IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programme, Eggleston H.S., Buendia L., Miwa K., Ngara T., and Tanabe K. (eds). Volume 2, Chapter 2: Stationary Combustion. Published: IGES, Japan. ttp://

● Activity level used in calculations —

Activity: Fuel combustion = 26,665,250 gal of Aviation gasoline
Basis: Data
Reference: Covert T. (2013). Data request between CARB and Theresa Covert, California State Board of Equalization, April 2013.

● Parameters and Constants used in calculations —

Parameter: Fuel N2O emission = 9.000E-07 g / btu
Reference: USEPA (2013). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2011. United States Environmental Protection Agency. EPA 430-R-13-001. Annex 3.2. Methodology for Estimating Emissions of CH4, N2O, and Indirect Greenhouse Gases from Mobile Combustion. April 12, 2013. Washington DC.
Parameter: Heat content = 120,000 btu / gal
Reference: ARB Mandatory Reporting of Greenhouse Gas Regulation. Subpart C of 40 CFR Part 98 (98.30 to 98.38). Available online at: ttps://
Constant: Global warming potential of N2O = 298
Reference: IPCC (2007). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Solomon S., Qin D., Manning M., Chen Z., Marquis M., Averyt K.B., Tignor M., and Miller H.L. (eds.).

● Greenhouse gas emitted per unit activity (derived from values listed above) —

Amount: 0.108 g of N2O per gal of Aviation gasoline
32.2 g of CO2eq. per gal of Aviation gasoline