Articles | Volume 20, issue 8
https://doi.org/10.5194/acp-20-5129-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-5129-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Characterization of the light-absorbing properties, chromophore composition and sources of brown carbon aerosol in Xi'an, northwestern China
Wei Yuan
State Key Laboratory of Loess and Quaternary Geology, Center for
Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry & Physics, Institute of
Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
University of Chinese Academy of Sciences, Beijing 100049, China
Ru-Jin Huang
CORRESPONDING AUTHOR
State Key Laboratory of Loess and Quaternary Geology, Center for
Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry & Physics, Institute of
Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Institute of Global Environmental Change, Xi'an Jiaotong University,
Xi'an 710049, China
Lu Yang
State Key Laboratory of Loess and Quaternary Geology, Center for
Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry & Physics, Institute of
Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Jie Guo
State Key Laboratory of Loess and Quaternary Geology, Center for
Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry & Physics, Institute of
Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Ziyi Chen
Royal School of Mines, South Kensington Campus, Imperial College
London, Exhibition Road, London SW7 3RW, UK
Jing Duan
State Key Laboratory of Loess and Quaternary Geology, Center for
Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry & Physics, Institute of
Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
University of Chinese Academy of Sciences, Beijing 100049, China
Ting Wang
State Key Laboratory of Loess and Quaternary Geology, Center for
Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry & Physics, Institute of
Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
University of Chinese Academy of Sciences, Beijing 100049, China
Haiyan Ni
State Key Laboratory of Loess and Quaternary Geology, Center for
Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry & Physics, Institute of
Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Yongming Han
State Key Laboratory of Loess and Quaternary Geology, Center for
Excellence in Quaternary Science and Global Change, Key Laboratory of Aerosol Chemistry & Physics, Institute of
Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Yongjie Li
Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macau SAR 999078, China
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking
University, Beijing 100871, China
Yang Chen
Chongqing Institute of Green and Intelligent Technology, Chinese
Academy of Sciences, Chongqing 400714, China
Thorsten Hoffmann
Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg
University Mainz, Duesbergweg 10–14, 55128 Mainz, Germany
Colin O'Dowd
School of Physics and Centre for Climate and Air Pollution Studies,
Ryan Institute, National University of Ireland Galway, University Road,
Galway H91CF50, Ireland
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Latest update: 13 Dec 2024
Short summary
We characterized light-absorbing properties, chromophore composition and sources of brown carbon (BrC) in Xi'an; identified three groups of light-absorbing organics; and quantified their contribution to overall BrC absorption. Our results showed that vehicle emissions and secondary formation are major sources of BrC in spring, coal combustion and vehicle emissions are major sources in fall, biomass burning and coal combustion become major sources in winter, and secondary BrC dominates in summer.
We characterized light-absorbing properties, chromophore composition and sources of brown carbon...
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