Articles | Volume 22, issue 14
https://doi.org/10.5194/acp-22-9703-2022
https://doi.org/10.5194/acp-22-9703-2022
Research article
 | 
29 Jul 2022
Research article |  | 29 Jul 2022

Oxygenated volatile organic compounds (VOCs) as significant but varied contributors to VOC emissions from vehicles

Sihang Wang, Bin Yuan, Caihong Wu, Chaomin Wang, Tiange Li, Xianjun He, Yibo Huangfu, Jipeng Qi, Xiao-Bing Li, Qing'e Sha, Manni Zhu, Shengrong Lou, Hongli Wang, Thomas Karl, Martin Graus, Zibing Yuan, and Min Shao

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Cited articles

Barletta, B., Meinardi, S., Sherwood Rowland, F., Chan, C.-Y., Wang, X., Zou, S., Yin Chan, L., and Blake, D. R.: Volatile organic compounds in 43 Chinese cities, Atmos. Environ., 39, 5979-5990, https://doi.org/10.1016/j.atmosenv.2005.06.029, 2005. 
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Chan, C. Y., Chan, L. Y., Wang, X. M., Liu, Y. M., Lee, S. C., Zou, S. C., Sheng, G. Y., and Fu, J. M.: Volatile organic compounds in roadside microenvironments of metropolitan Hong Kong, Atmos. Environ., 36, 2039–2047, https://doi.org/10.1016/S1352-2310(02)00097-3, 2002. 
Cui, L., Wang, X. L., Ho, K. F., Gao, Y., Liu, C., Hang Ho, S. S., Li, H. W., Lee, S. C., Wang, X. M., Jiang, B. Q., Huang, Y., Chow, J. C., Watson, J. G., and Chen, L.-W.: Decrease of VOC emissions from vehicular emissions in Hong Kong from 2003 to 2015: Results from a tunnel study, Atmos. Environ., 177, 64–74, https://doi.org/10.1016/j.atmosenv.2018.01.020, 2018. 
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Short summary
Volatile organic compound (VOC) emissions from vehicles are measured using online mass spectrometers. Differences between gasoline and diesel vehicles are observed with higher emission factors of most oxygenated VOCs (OVOCs) and heavier aromatics from diesel vehicles. A higher aromatics / toluene ratio could provide good indicators to distinguish emissions from both vehicle types. We show that OVOCs account for significant contributions to VOC emissions from vehicles, especially diesel vehicles.
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