Concentration, optical characteristics, and emission factors of brown carbon emitted by on-road vehicles

doi:10.1016/j.scitotenv.2021.151307

IEECAS OpenIR > 粉尘与环境研究室

	Concentration, optical characteristics, and emission factors of brown carbon emitted by on-road vehicles
	Huang, Ru-Jin 1,2,3,4; Yuan, Wei 1,2,4; Yang, Lu 1,2,4; Yang, Huinan 5; Cao, Wenjuan 1,2; Guo, Jie 1,2; Zhang, Ningning 1,2; Zhu, Chongshu 1,2; Wu, Yunfei 6; Zhang, Renjian 6
通讯作者	Huang, Ru-Jin(rujin.huang@ieecas.cn)
	2022-03-01
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	810 页码:7
摘要	Atmospheric 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.
关键词	Vehicle emissions Brown carbon Optical properties Emission factors
DOI	10.1016/j.scitotenv.2021.151307
关键词[WOS]	HUMIC-LIKE SUBSTANCES ; LIGHT-ABSORPTION PROPERTIES ; FINE PARTICULATE MATTER ; COAL COMBUSTION ; ORGANIC AEROSOL ; BLACK CARBON ; PM2.5 ; ATMOSPHERE ; CHEMISTRY ; TUNNEL
收录类别	SCI ; SCI
语种	英语
资助项目	National 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研究方向	Environmental Sciences & Ecology
项目资助者	National 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类目	Environmental Sciences
WOS记录号	WOS:000767271800011
出版者	ELSEVIER
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17551
专题	粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Huang, Ru-Jin
作者单位	1.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
推荐引用方式 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.