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Characterization of volatile organic compounds at a roadsideenvironment in Hong Kong: An investigation of influences after airpollution control strategies
Huang,Y(Huang,Yu)[1,2]; Ling,ZH(Ling,Zhenhao)[3]; Lee,SC(Lee,Shuncheng)[4]; Ho,SSH(Ho,Steven Sai Hang)[5]; Cao,JJ(Cao,Junji)[1,2]; Blake,DR.(Blake,Donald R. )[6]; Cheng,Y(Cheng,Yan)[7]; Lai,SC(Lai,Senchao)[8]; Ho,KF(Ho,Kinfai)[9]; Gao,Y(Gao,Yuan)[4]; Cui,L(Cui,Long)[4]; Louie,PKK.(Louie,Peter K.K.)[10]
2015-12
Source PublicationAtmospheric Environment
Volume122Issue:2015Pages:809-818
Subtype期刊论文
AbstractVehicular emission is one of the important anthropogenic pollution sources for volatile organic compounds (VOCs). Four characterization campaigns were conducted at a representative urban roadside environment in Hong Kong between May 2011 and February 2012. Carbon monoxide (CO) and VOCs including methane (CH4), non-methane hydrocarbons (NMHCs), halocarbons, and alkyl nitrates were quantified. Both mixing ratios and compositions of the target VOCs show ignorable seasonal variations. Except CO, liquefied petroleum gas (LPG) tracers of propane, i-butane and n-butane are the three most abundant VOCs, which increased significantly as compared with the data measured at the same location in 2003. Meanwhile, the mixing ratios of diesel- and gasoline tracers such as ethyne, alkenes, aromatics, halogenated, and nitrated hydrocarbons decreased by at least of 37%. The application of advanced multivariate receptor modeling technique of positive matrix factorization (PMF) evidenced that the LPG fuel consumption is the largest pollution source, accounting for 60 ± 5% of the total quantified VOCs at the roadside location. The sum of ozone formation potential (OFP) for the target VOCs was 300.9 μg-O3 m−3, which was 47% lower than the value of 567.3 μg-O3 m−3 measured in 2003. The utilization of LPG as fuel in public transport (i.e., taxis and mini-buses) contributed 51% of the sum of OFP, significantly higher than the contributions from gasoline- (16%) and diesel-fueled (12%) engine emissions. Our results demonstrated the effectiveness of the switch from diesel to LPG-fueled engine for taxis and mini-buses implemented by the Hong Kong Special Administrative Region (HKSAR) Government between the recent ten years, in additional to the execution of substitution to LPG-fueled engine and restrictions of the vehicular emissions in compliance with the updated European emission standards.
KeywordVehicular emission Volatile organic compounds Roadside environment Liquefied petroleum gas Source apportionments
DOI10.1016/j.atmosenv.2015.09.036
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9443
Collection粉尘与环境研究室
Affiliation1.Key Lab of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710075, China;
2.State Key Lab of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710075, China;
3.School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China;
4.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong;
5.Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, United States;
6.Department of Chemistry, University of California, Irvine, USA;
7.Department of Environmental Science and Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an, Shaanxi, 710049, China;
8.College of Environment and Energy, South China University of Technology, Higher Education Mega Centre, Guangzhou, 510006, China;
9.School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong;
10.Hong Kong Environmental Protection Department, Hong Kong
Recommended Citation
GB/T 7714
Huang,Y,Ling,ZH,Lee,SC,et al. Characterization of volatile organic compounds at a roadsideenvironment in Hong Kong: An investigation of influences after airpollution control strategies[J]. Atmospheric Environment,2015,122(2015):809-818.
APA Huang,Y.,Ling,ZH.,Lee,SC.,Ho,SSH.,Cao,JJ.,...&Louie,PKK..(2015).Characterization of volatile organic compounds at a roadsideenvironment in Hong Kong: An investigation of influences after airpollution control strategies.Atmospheric Environment,122(2015),809-818.
MLA Huang,Y,et al."Characterization of volatile organic compounds at a roadsideenvironment in Hong Kong: An investigation of influences after airpollution control strategies".Atmospheric Environment 122.2015(2015):809-818.
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