About AAQR

Aims and Scope

Articles online
For contributors
Call for Papers
Guideline for the
Special Issue Proposal


Contact Us
Search for  in   Search  Advanced search  


Volume 1, No. 1, June 2001, Pages 57-67 PDF(1.13 MB)  
doi: 10.4209/aaqr.2001.06.0006   

PAHs and Aerosol Carbons in the Exhaust of a Gasoline Powered Engine

Shui-Jen Chen1, Wei-Jain Jian1, Yi-Chu Huang1, Chu-Chin Hsieh2, Meei-Feng Shun3, Bai-Luh Wei3

1 Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, NeiPu, 91207, Pingtung, Taiwan, ROC
2 Department of Environmental and Safety Engineering, National Yunlin University of Science and Technology
3 Department of Environmental Engineering and Health, Tajen Institute of Technology




A Mazda E5 gasoline – powered engine operated on a dynamometer was used to investigate the PAH (Polycyclic Aromatic Hydrocarbons) and carbon emission. A 92–leadfree gasoline (92–LFG), a 95–leadfree gasoline (95–LFG) and a premium leaded gasoline (PLG) were used as tested fuels, Twenty one individual PAHs were analyzed by a gas chromatography/mass spectrometer (GC/MS), while the carbon composition of the aerosol samples were determined by an elemental analyzer. This study showed that the total – PAH concentration in the exhaust of 95–LFG was 1.29 and 1.33 times of magnitude higher than those of PLG and 92–LFG. With or without a catalyst converter system, the PAHs from primary sources mainly existed in the gas phase. Vehicles with a catalyst converter could reduce PAHs emission by more than 90%. In addition, it could reduce carbonaceous emission by more the 50% for total carbon (TC), 40% for elemental carbon (EC) and 60% for organic carbon (OC), respectively. The OC/EC rations were all greater than 1.0 for carbonaceous aerosols originated from the gasoline powered engine.



Keywords: PAHs; Elemental carbon; Organic carbon; Exhaust.



Copyright © 2009-2014 AAQR All right reserved.