Last reviewed on November 2, 2011 at 09:14

Documentation of California's Greenhouse Gas Inventory (First Edition - Last updated on 11/19/2007)

♦ Category: Industrial Processes and Product Use

IPCC: 2F - Product Uses as Substitutes for Ozone Depleting Substances
Sector: Not Specified : Not Specified

♦ Activity: Use of substitutes for ozone depleting substances -

♦ Greenhouse gas: Other Ozone Depleting Gases substitutes (mix) ( Other ODS substitutes )

► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 24.91 tonnes of Other ODS substitutes Emitted (36,017 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [US emissions from ODS substitutes] * [Ratio of California to US population]
Reference: USEPA (2004). Emission Inventory Improvement Program. Technical Report Series, Volume 8: Estimating Greenhouse Gas Emissions, Chapter 6: Industrial Processes. US Environmental Protection Agency. Washington DC.

● Activity level used in calculations —

Basis: None
Reference: Not Applicable.

● Parameters and Constants used in calculations —

Parameter: Ratio of California to US population = 0.12
Reference: USCB (various years). U.S. Census Bureau, Population Estimates for the United States and California. Accessed online at:
Parameter: US emissions from ODS substitutes = 207,468,880 g (i.e. 207.47 tonnes)
Reference: Godwin, D. (2007). Personal communication between Johnnie Raymond of CA Air Resources Board and Dave Godwin, Stratospheric Protection Division Source Lead, US Environmental Protection Agency, August 2007.
Constant: Global warming potential of Other ODS substitutes = 1446
Reference: ARB (2009). Technical Support Document for California’s Greenhouse Gas Emissions Inventory and 1990 Emissions Level. California Air Resources Board. (March 2009). Available online at: /cc/inventory/doc/methods_v1/ghg_inventory_technical_support_document.pdf

● Greenhouse gas emitted per unit activity —

Amount: Not Applicable