Jianfang Jiang1,5, Lili Hou This email address is being protected from spambots. You need JavaScript enabled to view it.1, Xing Yan2, Huiyue Liu1, Shuang Sun3, Shanshan Li4, Kai Xiong4, Wenji Zhao This email address is being protected from spambots. You need JavaScript enabled to view it.1 

1 College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China
2 State Key Laboratory of Remote Sensing Science, College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
3 Beijing Municipal Ecological and Environmental Monitoring Center, Beijing 100048, China
4 Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China
5 School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, China

Received: February 4, 2022
Revised: April 29, 2022
Accepted: May 27, 2022

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.4209/aaqr.220056  

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Cite this article:

Jiang, J., Hou, L., Yan, X., Liu, H., Sun, S., Li, S., Xiong, K., Zhao, W. (2022). Simultaneous Measurements of Carbonaceous Aerosol in Three Major Cities in the Beijing-Tianjin-Hebei Region, China. Aerosol Air Qual. Res. 22, 220056. https://doi.org/10.4209/aaqr.220056


  • Simultaneous observations of OC and EC in multiple cities in the BTH region.
  • OC and EC levels were greatly reduced after strict control measures in 2017.
  • Gasoline vehicle exhaust contributed significantly to OC and EC in all three cities.
  • Short-distance air mass transport from Hebei was the dominant in Shijiazhuang.


Simultaneous observations of carbonaceous aerosols in multiple cities are of great significance for a comprehensive understanding of the level of carbonaceous aerosol pollution in the Beijing-Tianjin-Hebei (BTH) region. In this study, PM2.5 samples were collected simultaneously in Beijing (BJ), Tianjin (TJ), and Shijiazhuang (SJZ) during the 2017–2018 heating season, and the contents of organic carbon (OC) and elemental carbon (EC) in the samples were measured. The mean mass concentrations were 10.15‒46.23 µg m–3 for OC, and 2.13‒10.42 µg m–3 for EC in three cities. SJZ had more serious carbonaceous aerosols pollution compared with BJ and TJ. The OC and EC levels in three cities, especially in Beijing, were significantly lower than those reported in previous studies, implying the effectivity of strict air pollution control measures in 2017. Based on the OC/EC minimum ratio method, the mass concentration of secondary organic carbon (SOC) was estimated, and SOC pollution in BJ was relatively light. Analysis of eight carbonaceous components showed that the gasoline vehicle exhaust sources made high contributions to the levels of carbonaceous aerosols in all three cities. Compared with SJZ, the carbonaceous aerosols in BJ and TJ were more affected by road dust pollution. Analysis of backward trajectory indicated that the carbonaceous aerosols in the three cities were affected by pollution transport from the BTH region and surrounding areas, in addition to local sources. In contrast to the other two cities, OC and EC in SJZ were greatly affected by short-distance air mass transport from Hebei Province.

Keywords: The Beijing-Tianjin-Hebei region, Carbonaceous aerosol, PM2.5, SOC, Source analysis, Backward trajectory

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