Test emission characteristics of motorcycles in Central Taiwan

The Science of the Total Environment
Chi-Wen LinKuo-Shian Lin

Abstract

Due to the large population and high levels of motorized-vehicle exhaust emissions, motorcycle emissions make an important contribution to total emissions in Taiwan, ROC. Aiming to reduce the air pollution generated by these motorcycles, the Taiwan Environmental Protection Administration (TEPA) has maintained an enforced inspection and maintenance (I/M) program for in-use motorcycles since 1996. This report explores the effects of engine type, engine size, engine age, and manufacturers of in-use motorcycles on CO/HC emissions in I/M testing data during the period of 1996-2002 in the Central Air Quality Basin of Taiwan. Additionally, geographical characteristics and failure rates of motorcycles are analyzed. The results indicate that the age, size, and type of engine, and the manufacturers of motorcycles all play a significant role in determining I/M emission test results. The findings also show that two-stroke motorcycles emitted approximately ten times greater HC than those of four-stroke motorcycles. CO/HC test emissions increase with a decrease in engine size, HC test emissions contributed by Yamaha and other manufacturers being the highest. Although CO/HC test emissions generally increase with the age of the motorcycle, old...Continue Reading

References

Dec 1, 1979·Journal of the American Dietetic Association
Jul 23, 2003·The Science of the Total Environment·K S ChenM T Hu

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Citations

Jul 17, 2009·Journal of the Air & Waste Management Association·Yi-Chi ChenFu-Tien Jeng
Mar 19, 2008·The Science of the Total Environment·Yung-Po LiawChin-Fen Yang

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