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The characteristics and sources of roadside VOCs in Hong Kong: Effect of the LPG catalytic converter replacement programme
Cui, Long1,2,3,4; Li, Hai Wei5; Huang, Yu1,2,3,4; Zhang, Zhou6,7,8; Lee, Shun Cheng9; Blake, Donald Ray10; Wang, Xin Ming6,7,8; Ho, Kin Fai11; Cao, Jun Ji1,2,3,4
Corresponding AuthorHuang, Yu(huangyu@ieecas.cn) ; Lee, Shun Cheng(ceslee@polyu.edu.hk)
2021-02-25
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume757Pages:12
AbstractIn order to improve local air quality of Hong Kong, more than 99% taxies and public light buses were changed from diesel to liquefied petroleum gas (LPG) fuel type in the early 2000s. In addition to the catalytic converters wear and tear, it is necessary to control air pollutants emitted from LPG vehicles. Therefore, an LPG catalytic converter replacement programme (CCRP) was fulfilled from October 2013 to April 2014 by the Hong Kong government. Roadside volatile compounds (VOCs) were measured by on-line measurement techniques before and alter the programme to evaluate the effectiveness of the LPG CCRP. The mixing ratios of total measured VOCs were found decreased from 69.3 +/- 12.6 ppbv to 43.9 +/- 6.5 ppbv after the LPG CCRP with the decreasing percentage of 36.7%. In addition, the total mixing ratio of LPG tracers, namely propane, i-butane, and n-butane, accounted for 49% of total measured VOCs before the LPG CCRP and the weighting percentage decreased to 34% after the programme. Moreover, the source apportionment of roadside VOCs also reflects the large decreasing trend of LPG vehicular emissions after the air pollution control measure. Due to the application of PTR-MS on measuring real-time VOCs and oxygenated volatile compounds (OVOCs) in this study, the emission ratios of individual OVOCs were investigated and being utilized to differentiate primary and secondary/biogenic sources of roadside OVOCs in Hong Kong. The findings demonstrate the effectiveness of the intervention programme, and are helpful to further implementation of air pollution control strategies in Hong Kong. (C) 2020 Elsevier B.V. All rights reserved.
KeywordVOCs PTR-MS Emission ratio Secondary source LPG emission
DOI10.1016/j.scitotenv.2020.143811
WOS KeywordVOLATILE ORGANIC-COMPOUNDS ; PEARL RIVER DELTA ; PHOTOCHEMICAL OZONE FORMATION ; METHYL VINYL KETONE ; AIR-POLLUTION ; SOURCE APPORTIONMENT ; EMISSION RATIOS ; NONMETHANE HYDROCARBONS ; VEHICULAR EMISSION ; FUELED VEHICLES
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41907199] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23010300] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23010000] ; National Key Research and Development Program of China[2017YFC0212200] ; National Key Research and Development Program of China[2016YFA0203000] ; State Key Lab of Loess and Quaternary Geology[SKLLQGPY1605] ; Research Grants Council of Hong Kong Government[T24-504/17-N] ; key Project of International Cooperation of the Chinese Academy of Sciences[GJHZ1543] ; General Research Fund-Research Grants Council of Hong Kong Government[18301117] ; EdUHK[19-20] ; Hundred Talent Program of the Chinese Academy of Sciences
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; National Key Research and Development Program of China ; State Key Lab of Loess and Quaternary Geology ; Research Grants Council of Hong Kong Government ; key Project of International Cooperation of the Chinese Academy of Sciences ; General Research Fund-Research Grants Council of Hong Kong Government ; EdUHK ; Hundred Talent Program of the Chinese Academy of Sciences
WOS SubjectEnvironmental Sciences
WOS IDWOS:000604432900077
PublisherELSEVIER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/15840
Collection加速器质谱中心
第四纪科学与全球变化卓越创新中心
Corresponding AuthorHuang, Yu; Lee, Shun Cheng
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, Shaanxi Key Lab Atmospher & Haze Fog Pollut Preve, Xian 710061, Peoples R China
4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
5.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Sch Environm Sci & Engn, Jiangsu Key Lab Atmospher Environm Monitoring & P, Nanjing 210044, Peoples R China
6.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China
7.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Peoples R China
8.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
9.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Hong Kong, Peoples R China
10.Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA
11.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Shatin, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Cui, Long,Li, Hai Wei,Huang, Yu,et al. The characteristics and sources of roadside VOCs in Hong Kong: Effect of the LPG catalytic converter replacement programme[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,757:12.
APA Cui, Long.,Li, Hai Wei.,Huang, Yu.,Zhang, Zhou.,Lee, Shun Cheng.,...&Cao, Jun Ji.(2021).The characteristics and sources of roadside VOCs in Hong Kong: Effect of the LPG catalytic converter replacement programme.SCIENCE OF THE TOTAL ENVIRONMENT,757,12.
MLA Cui, Long,et al."The characteristics and sources of roadside VOCs in Hong Kong: Effect of the LPG catalytic converter replacement programme".SCIENCE OF THE TOTAL ENVIRONMENT 757(2021):12.
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