Articles | Volume 18, issue 8
https://doi.org/10.5194/acp-18-5607-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-18-5607-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Sources and oxidative potential of water-soluble humic-like substances (HULISWS) in fine particulate matter (PM2.5) in Beijing
Yiqiu Ma
State Key Joint Laboratory for Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing 100871, P. R. China
Department of Chemistry, Hong Kong Baptist University, Kowloon Tong,
Kowloon, Hong Kong, P. R. China
Yubo Cheng
Department of Chemistry, Hong Kong Baptist University, Kowloon Tong,
Kowloon, Hong Kong, P. R. China
Xinghua Qiu
CORRESPONDING AUTHOR
State Key Joint Laboratory for Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing 100871, P. R. China
Gang Cao
School of Civil and Environment Engineering, Harbin Institute of
Technology Shenzhen Graduate School, Shenzhen, 518057, P. R. China
Yanhua Fang
State Key Joint Laboratory for Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing 100871, P. R. China
Junxia Wang
State Key Joint Laboratory for Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing 100871, P. R. China
State Key Joint Laboratory for Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing 100871, P. R. China
Jianzhen Yu
Department of Chemistry, Hong Kong University of Science and
Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
Department of Chemistry, Hong Kong Baptist University, Kowloon Tong,
Kowloon, Hong Kong, P. R. China
State Key Laboratory of Environmental and Biological Analysis, Hong
Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, P. R. China
HKBU Institute of Research and Continuing Education, Shenzhen Virtual
University Park, Shenzhen, 518057, P. R. China
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Latest update: 20 Nov 2024
Short summary
Water-soluble humic-like substances (HULISWS) are a potential toxic component of PM2.5 for their redox activity. In this study, we measured HULISWS and associated redox activity in PM2.5 sampled during a 1-year period in Beijing and investigated their sources. We found biomass burning and secondary aerosol formation were the major contributors (> 59 %) to both HULISWS and redox activity, and the combustion-related primary sources accounted for > 70 % of HULISWS and redox activity.
Water-soluble humic-like substances (HULISWS) are a potential toxic component of PM2.5 for their...
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