Preprints
https://doi.org/10.5194/acp-2022-270
https://doi.org/10.5194/acp-2022-270
 
18 May 2022
18 May 2022
Status: this preprint is currently under review for the journal ACP.

Measurement report: On the contribution of long-distance transport to the secondary aerosol formation and aging

Haobin Zhong1,2, Ru-Jin Huang1,2,3, Chunshui Lin1, Wei Xu1, Jing Duan1, Yifang Gu1,2, Wei Huang1, Haiyan Ni1, Chongshu Zhu1, Yan You4, Yunfei Wu5, Renjian Zhang5, Jurgita Ovadnevaite6, Darius Ceburnis6, and Colin D. O'Dowd6 Haobin Zhong et al.
  • 1State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Center for Excellence in Quaternary Science and Global Change, and Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Open Studio for Oceanic-Continental Climate and Environment Changes, Pilot National Laboratory for Marine Science and Technology (Qingdao), 266061 Qingdao, China
  • 4National Observation and Research Station of Coastal Ecological Environments in Macao, Macao Environmental Research Institute, Macau University of Science and Technology, Macao SAR 999078, China
  • 5Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
  • 6School of Physics and Ryan Institute’s Centre for Climate & Air Pollution Studies, National University of Ireland Galway, University Road, Galway H91CF50, Ireland

Abstract. To investigate the physio-chemical properties of aerosol transported from major pollution regions in China, observations were conducted ~200 m above the ground at the junction location of the North China Plain and Fenwei Basin, which are two regions of top priority for China’s blue sky campaign. We identified three pollution transport sectors including those from Beijing-Tianjin-Hebei (BTH), urban Guanzhong Basin (GZB), northern China and one clean transport sector from rural Guanzhong Basin region. Secondary inorganic aerosol (SIA) constituted a major fraction (39–46 %) in all pollution transport sectors with high sulphur oxidation ratio (0.44–0.58) and nitrogen oxidation ratio (0.24–0.29), suggesting efficient formation of secondary inorganic aerosol during regional transport. While more oxidized oxygenated organic aerosol (MO-OOA) played a dominant role in all sectors including the clean one, accounting for 42–58 % of total organic aerosol. Elemental analysis (O and C) shows that aerosol particles at this receptor site were much more oxidized than urban regions, pointing that long-range transport contributed markedly to the organic aerosol oxidation and aging. Case studies of pollution events with high sulphate, nitrate and more-oxidized oxygenated organic aerosol production rate indicate the strong formation efficiency of secondary aerosol during regional transport in the Beijing-Tianjin-Hebei transport sector.

Haobin Zhong et al.

Status: open (until 29 Jun 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2022-270', Anonymous Referee #2, 02 Jun 2022 reply
  • RC2: 'Comment on acp-2022-270', Anonymous Referee #1, 06 Jun 2022 reply

Haobin Zhong et al.

Data sets

Measurement report: On the contribution of long-distance transport to the secondary aerosol formation and aging Haobin Zhong https://doi.org/10.5281/zenodo.6446514

Haobin Zhong et al.

Viewed

Total article views: 304 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
238 58 8 304 18 2 5
  • HTML: 238
  • PDF: 58
  • XML: 8
  • Total: 304
  • Supplement: 18
  • BibTeX: 2
  • EndNote: 5
Views and downloads (calculated since 18 May 2022)
Cumulative views and downloads (calculated since 18 May 2022)

Viewed (geographical distribution)

Total article views: 359 (including HTML, PDF, and XML) Thereof 359 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 28 Jun 2022
Download
Short summary
To investigate the physio-chemical properties of aerosol transported from major pollution regions in China, observations were conducted ~200 m above the ground at the junction location of the two key pollution areas. We found that the formation efficiency, oxidation state and production rate of secondary aerosol were different in the transport sectors from different pollution regions, and they were largely enhanced by the regional long-distance transport.
Altmetrics