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Water-Insoluble Organics Dominate Brown Carbon in Wintertime Urban Aerosol of China: Chemical Characteristics and Optical Properties
Huang, Ru Jin1,2,11; Yang, Lu1; Shen, Jincan3; Yuan, Wei1; Gong, Yuquan1; Guo, Jie1; Cao, Wenjuan1; Duan, Jing1; Ni, Haiyan1,8; Zhu, Chongshu1; Dai, Wenting1; Li, Yongjie4; Chen, Yang5; Chen, Qi6; Wu, Yunfei7; Zhang, Renjian7; Dusek, Ulrike8; O'Dowd, Colin9; Hoffmann, Thorsten10
2020-07-07
Source PublicationEnvironmental Science and Technology
ABS Journal Level3
ISSN0013-936X
Volume54Issue:13Pages:7836-7847
Abstract

The chromophores responsible for light absorption in atmospheric brown carbon (BrC) are not well characterized, which hinders our understanding of BrC chemistry, the links with optical properties, and accurate model representations of BrC to global climate and atmospheric oxidative capacity. In this study, the light absorption properties and chromophore composition of three BrC fractions of different polarities were characterized for urban aerosol collected in Xi'an and Beijing in winter 2013-2014. These three BrC fractions show large differences in light absorption and chromophore composition, but the chromophores responsible for light absorption are similar in Xi'an and Beijing. Water-insoluble BrC (WI-BrC) fraction dominates the total BrC absorption at 365 nm in both Xi'an (51 ± 5%) and Beijing (62 ± 13%), followed by a humic-like fraction (HULIS-BrC) and high-polarity water-soluble BrC. The major chromophores identified in HULIS-BrC are nitrophenols and carbonyl oxygenated polycyclic aromatic hydrocarbons (OPAHs) with 2-3 aromatic rings (in total 18 species), accounting for 10% and 14% of the light absorption of HULIS-BrC at 365 nm in Xi'an and Beijing, respectively. In comparison, the major chromophores identified in WI-BrC are PAHs and OPAHs with 4-6 aromatic rings (in total 16 species), contributing 6% and 8% of the light absorption of WI-BrC at 365 nm in Xi'an and Beijing, respectively.

DOI10.1021/acs.est.0c01149
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000548584900015
Scopus ID2-s2.0-85088209875
Fulltext Access
FWCI3.039351
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorHuang, Ru Jin; Shen, Jincan
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Center for Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China
2.Institute of Global Environmental Change, Xi'An Jiaotong University, Xi'an, 710049, China
3.Key Laboratory of Detection Technology R and D on Food Safety, Food Inspection and Quarantine Technology Center of Shenzhen Customs, Shenzhen, 518045, China
4.Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, 999078, Macao
5.Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
6.State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
7.RCE-TEA, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
8.Centre for Isotope Research (CIO), Energy and Sustainability Research Institute Groningen (ESRIG), University of Groningen, Groningen, 9747 AG, Netherlands
9.School of Physics and Centre for Climate and Air Pollution Studies, Ryan Institute, National University of Ireland Galway, Galway, University Road, H91CF50, Ireland
10.Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University of Mainz, Mainz, Duesbergweg 10-14, 55128, Germany
11.Open Studio for Oceanic-Continental Climate and Environment Changes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266061, China
Recommended Citation
GB/T 7714
Huang, Ru Jin,Yang, Lu,Shen, Jincan,et al. Water-Insoluble Organics Dominate Brown Carbon in Wintertime Urban Aerosol of China: Chemical Characteristics and Optical Properties[J]. Environmental Science and Technology,2020,54(13):7836-7847.
APA Huang, Ru Jin,Yang, Lu,Shen, Jincan,Yuan, Wei,Gong, Yuquan,Guo, Jie,Cao, Wenjuan,Duan, Jing,Ni, Haiyan,Zhu, Chongshu,Dai, Wenting,Li, Yongjie,Chen, Yang,Chen, Qi,Wu, Yunfei,Zhang, Renjian,Dusek, Ulrike,O'Dowd, Colin,&Hoffmann, Thorsten.(2020).Water-Insoluble Organics Dominate Brown Carbon in Wintertime Urban Aerosol of China: Chemical Characteristics and Optical Properties.Environmental Science and Technology,54(13),7836-7847.
MLA Huang, Ru Jin,et al."Water-Insoluble Organics Dominate Brown Carbon in Wintertime Urban Aerosol of China: Chemical Characteristics and Optical Properties".Environmental Science and Technology 54.13(2020):7836-7847.
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