Last reviewed on 12-01-2023
Documentation of California's Greenhouse Gas Inventory
(2023 Edition - Last updated on 12-1-2023)
♦ Category: Energy
IPCC: |
1A3b - Fuel Combustion Activities - Transport - Road Transportation |
Sector: |
Transportation : On Road |
♦ Activity: Fuel combustion - Natural gas
♦ Greenhouse gas: Nitrous oxide ( N2O )
► Year 2005 —
● Greenhouse gas emission estimate —
Amount: |
0.963 tonne of N2O Emitted (286.93 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. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/2_Volume2/V2_2_Ch2_Stationary_Combustion.pdf |
● Activity level used in calculations —
Activity: |
Fuel combustion = 9,411,000,000 scf of Natural gas |
Basis: |
Data |
Reference: |
EIA (2022). Energy Information Administration. State Energy Consumption, Price, and Expenditure Estimates (SEDS). Available online at: https://www.eia.gov/dnav/ng/ng_cons_sum_dcu_SCA_a.htm |
● Parameters and Constants used in calculations —
Parameter: |
Heat content = 1,023 btu / scf |
Reference: |
EIA (2021). Energy Information Administration. State Energy Consumption, Price, and Expenditure Estimates (SEDS). Available online at: https://www.eia.gov/state/seds/seds-data-complete.php?sid=CA |
Parameter: |
N2O emission factor = 1.000E-07 g / btu |
Reference: |
CARB Mandatory Reporting of Greenhouse Gas Regulation. Subpart C of 40 CFR Part 98 (§§98.30 to 98.38). Available online at: https://www.arb.ca.gov/cc/reporting/ghg-rep/regulation/subpart_c_rule_part98.pdf |
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.). http://www.ipcc.ch/publications_and_data/publications_ipcc_fourth_assessment_report_synthesis_report.htm |
● Greenhouse gas emitted per unit activity (derived from values listed above) —
Amount: |
1.023E-04 g of N2O per scf of Natural gas 0.0305 g of CO2eq. per scf of Natural gas |