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: 2E - Electronics Industry
Sector: Industrial : Manufacturing : Electric & Electronic Equip. : Semiconductors & Related Products

♦ Activity: Semiconductor manufacture -

♦ Greenhouse gas: Mix of halogenated gases expressed in CO2 Eq. ( Halogenated gases (in CO2 Eq.) )

► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 592,267 tonnes of Halogenated gases (in CO2 Eq.) Emitted (592,267 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [US emissions from semiconductor manufacture] * [Value of California Semiconductor Shipments] / [Value of US Semiconductor Shipments]
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. http://www.epa.gov/ttn/chief/eiip/techreport/volume08/index.html

● Activity level used in calculations —

Activity:
Basis: None
Reference: Not Applicable.

● Parameters and Constants used in calculations —

Parameter: US emissions from semiconductor manufacture = 2,900,000,000,000 g (i.e. 2.9 million tonnes)
Reference: USEPA (2007). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2005. United States Environmental Protection Agency. EPA 430-R-07-002. April 15, 2007. Washington DC. http://www.epa.gov/climatechange/emissions/usgginv_archive.html
Parameter: Value of California Semiconductor Shipments = 16,040,142,000 $
Reference: USCB (various years). U.S. Census Bureau’s Economic Census data. Accessed online at: (Information is listed by NAICS Code Number, NAICS Code for “Semiconductor Manufacturing = #334413"). http://www.census.gov/econ/census02/
Parameter: Value of US Semiconductor Shipments = 78,539,562,000 $
Reference: USCB (various years). U.S. Census Bureau’s Economic Census data. Accessed online at: (Information is listed by NAICS Code Number, NAICS Code for “Semiconductor Manufacturing = #334413"). http://www.census.gov/econ/census02/

● Greenhouse gas emitted per unit activity —

Amount: Not Applicable
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