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Concentrations, optical properties and sources of humic-like substances (HULIS) in fine particulate matter in Xi'an, Northwest China
Yuan, Wei1,4; Huang, Ru-Jin1,2,3; Yang, Lu1; Ni, Haiyan1; Wang, Ting1,4; Cao, Wenjuan1; Duan, Jing1; Guo, Jie1; Huang, Huabin3; Hoffmann, Thorsten5
Corresponding AuthorHuang, Ru-Jin(rujin.huang@ieecas.cn)
2021-10-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume789Pages:9
AbstractHumic-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.
KeywordHUUS Bmwn carbon Optical properties Sources
DOI10.1016/j.scitotenv.2021.147902
WOS KeywordPEARL RIVER DELTA ; CHEMICAL-CHARACTERIZATION ; SOURCE APPORTIONMENT ; TEMPORAL VARIATIONS ; ATMOSPHERIC HULIS ; EMISSION FACTORS ; ORGANIC-MATTER ; URBAN AEROSOLS ; BROWN CARBON ; PM2.5
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic 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 Research AreaEnvironmental Sciences & Ecology
Funding OrganizationStrategic 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
WOS SubjectEnvironmental Sciences
WOS IDWOS:000677549900009
PublisherELSEVIER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16901
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, 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
Recommended Citation
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.
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