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Concentration, optical characteristics, and emission factors of brown carbon emitted by on-road vehicles
Huang, Ru-Jin1,2,3,4; Yuan, Wei1,2,4; Yang, Lu1,2,4; Yang, Huinan5; Cao, Wenjuan1,2; Guo, Jie1,2; Zhang, Ningning1,2; Zhu, Chongshu1,2; Wu, Yunfei6; Zhang, Renjian6
Corresponding AuthorHuang, Ru-Jin(rujin.huang@ieecas.cn)
2022-03-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume810Pages:7
AbstractAtmospheric brown carbon (BrC) is a light-absorbing component that affects radiative forcing; however, this effect requires further clarification, particularly with respect to BrC emission sources, chromophores, and optical properties. In the present study, the concentrations, optical properties, and emission factors of organic carbon (OC), water-soluble OC (WSOC), and humic-like substances (HULIS) in fine particulate matter (PM2.5) emitted from vehicles in three road tunnels ( the Wucun, Xianyue, and Wenxing tunnels in Xiamen, China) were investigated. The mass concentrations and light absorption of OC, WSOC, and HULLS were higher at the exits of each tunnel than at entrances, demonstrating that vehicle emissions were a BrC source. At each tunnel's exit, the average light absorption contributed by HULIS-BrC to water-soluble BrC (WS-BrC) and total BrC at 365 nm was higher than the corresponding carbon mass concentration contributed by HULIS (HULIS-C) to WSOC and OC, indicating that the chromophores of HULIS emitted from vehicles had a disproportionately high effect on the light absorption characteristics of BrC. The emission factors (ER) of HUUS-C and WSOC mass concentrations were highest at the Xianyue tunnel; however, the EFs of HULIS-BrC and WS-BrC light absorption were highest at the Wenxing tunnel, indicating that the chromophore composition of BrC was different among the tunnels and that the mass concentration EFs did not correspond directly to the light absorption EFs. (C) 2021 Elsevier B.V. All rights reserved.
KeywordVehicle emissions Brown carbon Optical properties Emission factors
DOI10.1016/j.scitotenv.2021.151307
WOS KeywordHUMIC-LIKE SUBSTANCES ; LIGHT-ABSORPTION PROPERTIES ; FINE PARTICULATE MATTER ; COAL COMBUSTION ; ORGANIC AEROSOL ; BLACK CARBON ; PM2.5 ; ATMOSPHERE ; CHEMISTRY ; TUNNEL
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFC0212701] ; National Natural Science Foundation of China (NSFC)[41877408] ; National Natural Science Foundation of China (NSFC)[41925015] ; Chinese Academy of Sciences[ZDBS-LYDQC001] ; Chinese Academy of Sciences[XDB40000000] ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology[SKLLQGTD1801]
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000767271800011
PublisherELSEVIER
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/17551
Collection粉尘与环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorHuang, Ru-Jin
Affiliation1.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, SKLLQG, Xian 710061, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, KLACP, Xian 710061, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China
6.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Huang, Ru-Jin,Yuan, Wei,Yang, Lu,et al. Concentration, optical characteristics, and emission factors of brown carbon emitted by on-road vehicles[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,810:7.
APA Huang, Ru-Jin.,Yuan, Wei.,Yang, Lu.,Yang, Huinan.,Cao, Wenjuan.,...&Zhang, Renjian.(2022).Concentration, optical characteristics, and emission factors of brown carbon emitted by on-road vehicles.SCIENCE OF THE TOTAL ENVIRONMENT,810,7.
MLA Huang, Ru-Jin,et al."Concentration, optical characteristics, and emission factors of brown carbon emitted by on-road vehicles".SCIENCE OF THE TOTAL ENVIRONMENT 810(2022):7.
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