Last reviewed on 10-02-2020

Documentation of California's Greenhouse Gas Inventory (13th Edition - Last updated on 10-15-2020)

♦ Category: Waste

IPCC: 4A1 - Solid Waste Disposal - Managed Waste Disposal Sites
Sector: Industrial : Landfills

♦ Activity: Landfill gas generation - Landfill gas

♦ Greenhouse gas: Methane ( CH4 )

► Year 2000 —

● Greenhouse gas emission estimate —

Amount: 298,676 tonnes of CH4 Emitted (7,466,893 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Landfill gas generation] * [Landfill gas CH4 emission factor]
Reference: IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Eggleston H.S., Buendia L., Miwa K., Ngara T., and Tanabe K. (eds). Vol.5, Chap. 3: Solid Waste Disposal. Published: IGES, Japan. #http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/5_Volume5/V5_3_Ch3_SWDS.pdf

● Activity level used in calculations —

Activity: Landfill gas generation = 138,241,311,269 scf of Landfill gas
Basis: Data
Reference: ARB (2016). Technical support document on GHG inventory methodologies for the 2000-2014 inventory. See Discussion of emissions from solid waste landfills available at: https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf#https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf

● Parameters and Constants used in calculations —

Parameter: Landfill gas CH4 emission factor = 2.16 g / scf
Reference: ARB (2016). Technical support document on GHG inventory methodologies for the 2000-2014 inventory. See Discussion of emissions from solid waste landfills available at: https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf#https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf
Constant: Global warming potential of CH4 = 25
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: 2.16 g of CH4 per scf of Landfill gas
54 g of CO2eq. per scf of Landfill gas