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Aqueous production of secondary organic aerosol from fossil-fuel emissions in winter Beijing haze.
Wang, Junfeng; Ye, Jianhuai; Zhang, Qi; Zhao, Jian; Wu, Yangzhou; Li, Jingyi; Liu, Dantong; Li, Weijun; Zhang, Yange; Wu, Cheng; Xie, Conghui; Qin, Yiming; Lei, Yali; Huang, Xiangpeng; Guo, Jianping; Liu, Pengfei; Fu, Pingqing; Li, Yongjie; Lee, Hyun Chul; Choi, Hyoungwoo; Zhang, Jie; Liao, Hong; Chen, Mindong; Sun, Yele; Ge, Xinlei; Martin, Scot T; Jacob, Daniel J.
Afiliação
  • Wang J; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China.
  • Ye J; John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.
  • Zhang Q; John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.
  • Zhao J; Department of Environmental Toxicology, University of California, Davis, CA 95616.
  • Wu Y; Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
  • Li J; Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310027, China.
  • Liu D; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China.
  • Li W; Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310027, China.
  • Zhang Y; Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310027, China.
  • Wu C; Institute of Oceanography, Minjiang University, Fuzhou 350108, China.
  • Xie C; Institute of Mass Spectrometry and Atmospheric Environment, Jinan University, Guangzhou 510632, China.
  • Qin Y; Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
  • Lei Y; John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.
  • Huang X; John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.
  • Guo J; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China.
  • Liu P; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China.
  • Fu P; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332.
  • Li Y; Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China.
  • Lee HC; Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau 999078, China.
  • Choi H; Samsung Advance Institute of Technology, Gyeonggi-do, Suwon-si 16678, Republic of Korea.
  • Zhang J; Samsung Advance Institute of Technology, Gyeonggi-do, Suwon-si 16678, Republic of Korea.
  • Liao H; Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523.
  • Chen M; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China.
  • Sun Y; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China.
  • Ge X; Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
  • Martin ST; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; c
  • Jacob DJ; John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.
Proc Natl Acad Sci U S A ; 118(8)2021 02 23.
Article em En | MEDLINE | ID: mdl-33593919
ABSTRACT
Secondary organic aerosol (SOA) produced by atmospheric oxidation of primary emitted precursors is a major contributor to fine particulate matter (PM2.5) air pollution worldwide. Observations during winter haze pollution episodes in urban China show that most of this SOA originates from fossil-fuel combustion but the chemical mechanisms involved are unclear. Here we report field observations in a Beijing winter haze event that reveal fast aqueous-phase conversion of fossil-fuel primary organic aerosol (POA) to SOA at high relative humidity. Analyses of aerosol mass spectra and elemental ratios indicate that ring-breaking oxidation of POA aromatic species, leading to functionalization as carbonyls and carboxylic acids, may serve as the dominant mechanism for this SOA formation. A POA origin for SOA could explain why SOA has been decreasing over the 2013-2018 period in response to POA emission controls even as emissions of volatile organic compounds (VOCs) have remained flat.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Proc Natl Acad Sci U S A Ano de publicação: 2021 Tipo de documento: Article País de afiliação: China
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Proc Natl Acad Sci U S A Ano de publicação: 2021 Tipo de documento: Article País de afiliação: China