Research Projects

Project at a Glance

Project Status: active

Title: Investigating semi-volatile organic compound emissions from light-duty vehicles

Principal Investigator / Author(s): Goldstein, Allen

Contractor: UC Berkeley

Contract Number: 12-318

Research Program Area: Emissions Monitoring & Control

Topic Areas: Mobile Sources & Fuels

Research Summary:

Recent research indicates that light-duty gasoline vehicles (LDGVs) may be significant contributors to the organic aerosol portion of ambient Particulate Matter (PM) because of the contribution from secondary organic aerosol (SOA) formation. It has been suggested that LDGVs certified to ARB's super ultra-low emission vehicle (SULEV) standards may be equipped with emissions control systems that effectively control semi-volatile organic compounds (SVOCs) which lead to SOA formation. The objectives of this project are to: 1) investigate the control effectiveness of SULEV control technology in reducing SVOC emissions and SOA formation by testing a small fleet of in- use SULEVs, both new vehicles, as well as older, high mileage vehicles; 2) project these emissions results to a fleet-wide basis; and 3) evaluate methods for making 36 SVOC emissions measurements. In addition, the SVOCs control effectiveness of other fuels (E85, diesel and CNG) will also be studied. Results will inform policy makers about the effectiveness of the SULEV regulations and implementation schedule for reducing SVOC SOA-precursor emissions.


For questions regarding this research project, including available data and progress status, contact: Heather Choi at (916) 322-3893

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