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Emissions From Catalyst Equipped California Cars in Customer Service
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English
Abstract
The in-use performance of emission control systems on California passenger cars is monitored by annual surveillance programs where consumer-owned cars are emission tested at the California Air Resources Board’s Haagen-Smit Laboratory. Recently, the third catalyst vehicle surveillance program was completed and the Air Resources Board now has sufficient data to update the “emission factors” for the catalyst equipped California cars which have been estimated by the U.S. Environmental Protection Agency. Analysis of in-use surveillance data suggest that the EPA emission factors under-predict hydrocarbon emissions for California cars and that they over-predict carbon monoxide and oxides of nitrogen emissions. In addition, a significant benefit is shown for an annual inspection and maintenance program.
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Citation
Cross, R., "Emissions From Catalyst Equipped California Cars in Customer Service," SAE Technical Paper 800395, 1980, https://doi.org/10.4271/800395.Also In
References
- “Derivation of Motor Vehicle Exhaust Emission Rates” March 1978
- “First Annual Report to the Legislature on the Mandatory Vehicle Inspection Program,” California Air Resources Board October 1979
- “76S- 1975–1976 Model Year Surveillance Program Report” Vehicle Surveillance Section, California Air Resources Board March 1978
- “Final Report of the Light-Duty Vehicle Surveillance Test Program, 2nd Series, CVS (LDVSP-II) Vehicle Surveillance Section, California Air Resources Board August 1979
- Data Summary Light-Duty Vehicle Surveillance Test Program, 3rd Series Vehicle Surveillance Section, California Air Resources Board
- Test plans for the Light Duty Vehicle Surveillance Test Programs, 2nd Series (April 10, 1978), and 3rd Series (July 14, 1978) Use Vehicle Surveillance Section, California Air Resources Board
- “Changes to the Board’s Optional 100,000 Mile Emission Standards and Test Procedures” California Air Resources Board May 22 1979
- “Exhaust Standards for the Mandatory Vehicle Inspection Program” California Air Resources Board September 29 1978
- “The Need for Inspection and Maintenance for Current and Future Motor Vehicles” Cackette Thomas Lorand Philip Hughes David SAE 790782 August 6–9 1979
- “Procedure and Basis for Estimating On-Road Motor Vehicle Emissions” Technical Services Division, California Air Resources Board July 1979