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Characterizations of volatile organic compounds (VOCs) from vehicular emissions at roadside environment: The first comprehensive study in Northwestern China
Li, Bowei1,2; Ho, Steven Sai Hang1,3,4; Xue, Yonggang1,3; Huang, Yu1,3; Wang, Liqin1,3; Cheng, Yan2; Dai, Wenting1,3; Zhong, Haobin1,3; Cao, Junji1,3; Lee, Shuncheng5
2017-07-01
Source PublicationATMOSPHERIC ENVIRONMENT
Volume161Issue:2017Pages:1-12
SubtypeArticle
AbstractVehicular emission (VE) is one of the important anthropogenic sources for ground-level volatile organic compounds (VOCs) in both urban and suburban areas. A first comprehensive campaign was conducted at an urban roadside in Xi'an, China in summer, 2016. A total of 57 VOCs, as known as critical surface ozone (03) precursors, and other trace gases were measured simultaneously during the sampling period. Isopentane, a tracer of gasoline evaporation, was the most abundant VOC in the roadside samples, followed by isobutane and benzene, attributed to the largest composition (similar to 70%) of gasoline-fueled vehicles on the road. The molar ratio of toluene/benzene (T/B) in our study (0.36) is far lower than the range reported in other cities, indicating the stronger contributions from diesel emissions. The results of source apportionment achieved with positive matrix factorization (PMF) receptor model were highly consistent with the vehicles compositions, strongly evidenced that the precise characterization of the VE sources from those marker species. The degrees of individual compound contributed to 03 production were weighed by ozone formation potential (OFP). Propylene (20%), 1-butene (11%) and iso-pentane(10%) were the top three contributors at the roadside. The information of this study complements the VOCs database regarding to the VE sources in Northwestern China. (C)2017 Elsevier Ltd. All rights reserved.
KeywordVocs Ozone Precursors Roadside Vehicular Emissions Source Apportionment
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1016/j.atmosenv.2017.04.029
WOS KeywordPEARL RIVER-DELTA ; COMPRESSED NATURAL-GAS ; SOURCE APPORTIONMENT ; HONG-KONG ; NONMETHANE HYDROCARBONS ; AEROSOL FORMATION ; ATMOSPHERIC BTEX ; OZONE FORMATION ; AIR-POLLUTION ; URBAN
Indexed BySCI
Language英文
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000403515900001
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5403
Collection粉尘与环境研究室
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Xi An Jiao Tong Univ, Dept Environm Sci & Technol, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China
3.Chinese Acad Sci, SKLLQG, Inst Earth Environm, Xian 710061, Peoples R China
4.Desert Res Inst, Div Atmospher Sci, Reno, NV USA
5.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Li, Bowei,Ho, Steven Sai Hang,Xue, Yonggang,et al. Characterizations of volatile organic compounds (VOCs) from vehicular emissions at roadside environment: The first comprehensive study in Northwestern China[J]. ATMOSPHERIC ENVIRONMENT,2017,161(2017):1-12.
APA Li, Bowei.,Ho, Steven Sai Hang.,Xue, Yonggang.,Huang, Yu.,Wang, Liqin.,...&Lee, Shuncheng.(2017).Characterizations of volatile organic compounds (VOCs) from vehicular emissions at roadside environment: The first comprehensive study in Northwestern China.ATMOSPHERIC ENVIRONMENT,161(2017),1-12.
MLA Li, Bowei,et al."Characterizations of volatile organic compounds (VOCs) from vehicular emissions at roadside environment: The first comprehensive study in Northwestern China".ATMOSPHERIC ENVIRONMENT 161.2017(2017):1-12.
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