Concentrations, optical properties and sources of humic-like substances (HULIS) in fine particulate matter in Xi'an, Northwest China

doi:10.1016/j.scitotenv.2021.147902

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Concentrations, optical properties and sources of humic-like substances (HULIS) in fine particulate matter in Xi'an, Northwest China
	Yuan, Wei 1,4; Huang, Ru-Jin 1,2,3; Yang, Lu 1; Ni, Haiyan 1; Wang, Ting 1,4; Cao, Wenjuan 1; Duan, Jing 1; Guo, Jie 1; Huang, Huabin 3; Hoffmann, Thorsten 5
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-10-01
卷号	789 页码:9
关键词	HUUS Bmwn carbon Optical properties Sources
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2021.147902
通讯作者	Huang, Ru-Jin(rujin.huang@ieecas.cn)
英文摘要	Humic-like substances ( HULLS) are ubiquitous in the atmospheric environment, which affects both human health and climate. We present here the mass concentration and optical characteristics of HULIS isolated from aerosol samples collected in Xi'an, China. Both mass concentration and absorption coefficient (Abs (385)) of HULIS show clear seasonal differences, with the highest average in winter (3.91 mu gC m(-3) and 4.78 M m(-1), respectively) and the lowest in summer (0.65 mu gC m(-3) and 0.55 M m(-1), respectively). The sources of HULIS _C and light absorption of HUUS were analyzed by positive matrix factorization (PMF) and four major sources were resolved, including secondary formation, biomass burning, coal burning, and vehicle emission. Our results show that secondary formation (i.e., gas-to-particle conversion from e.g., photochemical oxidation) was the major contributor to both HULIS _C (50%) and light absorption (55%) of HULIS in summer, biomass burning and coal burning were major sources of HULIS_C (similar to 70%) and light absorption (similar to 80%) of HULIS in winter. It is worth noting that biomass burning and coal burning had higher contribution to HUUS light absorption (47% in spring, 37% in summer, 73% in fall, and 77% in winter) than their corresponding contribution to HUUS_C concentration (41% in spring, 37% in summer, 54% in fall, and 69% in winter). However, vehicle emission had lower contribution to HUUS light absorption (26% in spring, 8% in summer, 18% in fall, and 11% in winter) than to HUUS_C concentration (24% in spring, 13% in summer, 28% in fall, and 18% in winter). These results suggest that HULIS from biomass burning and coal burning have higher light absorption ability than from vehide emission. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; National Natural Science Foundation of China (NSFC)[41877408] ; National Natural Science Foundation of China (NSFC)[41925015] ; National Natural Science Foundation of China (NSFC)[91644219] ; Chinese Academy of Sciences[ZDBSLYDQC001] ; National Key Research and Development Program of China[2017YFC0212701] ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology[SKLLQGTD1801]
WOS关键词	PEARL RIVER DELTA ; CHEMICAL-CHARACTERIZATION ; SOURCE APPORTIONMENT ; TEMPORAL VARIATIONS ; ATMOSPHERIC HULIS ; EMISSION FACTORS ; ORGANIC-MATTER ; URBAN AEROSOLS ; BROWN CARBON ; PM2.5
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000677549900009
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; National Key Research and Development Program of China ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16900]
专题	地球环境研究所_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, Ctr Excellence Quaternary Sci & Global Change, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol,Inst Earth, Xian 710061, Peoples R China 2.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 3.Xiamen Huaxia Univ, Coll Environm & Publ Hlth, Xiamen 361024, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Johannes Gutenberg Univ Mainz, Inst Inorgan & Analyt Chem, Duesbergweg 10-14, D-55128 Mainz, Germany
推荐引用方式 GB/T 7714	Yuan, Wei,Huang, Ru-Jin,Yang, Lu,et al. Concentrations, optical properties and sources of humic-like substances (HULIS) in fine particulate matter in Xi'an, Northwest China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,789:9.
APA	Yuan, Wei.,Huang, Ru-Jin.,Yang, Lu.,Ni, Haiyan.,Wang, Ting.,...&Hoffmann, Thorsten.(2021).Concentrations, optical properties and sources of humic-like substances (HULIS) in fine particulate matter in Xi'an, Northwest China.SCIENCE OF THE TOTAL ENVIRONMENT,789,9.
MLA	Yuan, Wei,et al."Concentrations, optical properties and sources of humic-like substances (HULIS) in fine particulate matter in Xi'an, Northwest China".SCIENCE OF THE TOTAL ENVIRONMENT 789(2021):9.