Articles | Volume 22, issue 9
https://doi.org/10.5194/acp-22-6255-2022
© Author(s) 2022. 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-22-6255-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Measurement report
| 
13 May 2022
Measurement report |
| 13 May 2022
| 13 May 2022
Measurement report: Source apportionment of carbonaceous aerosol using dual-carbon isotopes (13C and 14C) and levoglucosan in three northern Chinese cities during 2018–2019
Huiyizhe Zhao
State Key Laboratory of Loess and Quaternary Geology, CAS Center for Excellence in Quaternary Science and Global Change, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Shaanxi Provincial Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Joint Xi'an AMS Center between IEECAS and Xi'an Jiaotong University, Xi'an 710061, China
University of Chinese Academy of Sciences, Beijing 100049, China
State Key Laboratory of Loess and Quaternary Geology, CAS Center for Excellence in Quaternary Science and Global Change, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Open Studio for Oceanic-Continental Climate and Environment Changes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266061, China
Shaanxi Provincial Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Joint Xi'an AMS Center between IEECAS and Xi'an Jiaotong University, Xi'an 710061, China
University of Chinese Academy of Sciences, Beijing 100049, China
Shaanxi Guanzhong Plain Ecological Environment Change and Comprehensive Treatment National Observation and Research Station, Xi'an 710061, China
Weijian Zhou
CORRESPONDING AUTHOR
State Key Laboratory of Loess and Quaternary Geology, CAS Center for Excellence in Quaternary Science and Global Change, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Open Studio for Oceanic-Continental Climate and Environment Changes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266061, China
Shaanxi Provincial Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Joint Xi'an AMS Center between IEECAS and Xi'an Jiaotong University, Xi'an 710061, China
University of Chinese Academy of Sciences, Beijing 100049, China
Sen Wang
Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China
Xue Feng
Xi'an Institute for Innovative Earth Environment Research, Xi'an 710061, China
Shugang Wu
State Key Laboratory of Loess and Quaternary Geology, CAS Center for Excellence in Quaternary Science and Global Change, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Shaanxi Provincial Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Joint Xi'an AMS Center between IEECAS and Xi'an Jiaotong University, Xi'an 710061, China
Xuefeng Lu
State Key Laboratory of Loess and Quaternary Geology, CAS Center for Excellence in Quaternary Science and Global Change, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Shaanxi Provincial Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Joint Xi'an AMS Center between IEECAS and Xi'an Jiaotong University, Xi'an 710061, China
Hua Du
State Key Laboratory of Loess and Quaternary Geology, CAS Center for Excellence in Quaternary Science and Global Change, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
Shaanxi Provincial Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Joint Xi'an AMS Center between IEECAS and Xi'an Jiaotong University, Xi'an 710061, China
Related authors
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Pingyang Li, Boji Lin, Zhineng Cheng, Jing Li, Jun Li, Duohong Chen, Tao Zhang, Run Lin, Sanyuan Zhu, Jun Liu, Yujun Lin, Shizhen Zhao, Guangcai Zhong, Zhenchuan Niu, Ping Ding, and Gan Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2025-1931, https://doi.org/10.5194/egusphere-2025-1931, 2025
Short summary
Short summary
Our study indicates fossil fuel CO2 (CO2ff) reductions in Chinese megacities via atmospheric Δ(14CO2) and δ(13CO2) measurements, driven by coal-to-gas transitions and combustion efficiency improvement. Three-decade data show steeper declined urban RCO/CO2ff ratios than inventory estimates, implying underestimation of efficiency improvements and CO reductions. Integrating top-down observations with inventories is critical to track policy-driven emission shifts and optimize co-benefit strategies.
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Short summary
In this study, we investigated the characteristics and changes in the sources of carbonaceous aerosols in northern Chinese cities using dual-carbon isotopes (13C and 14C) and levoglucosan during 2018 to 2019 and compared them with the research in previous decades. The results show that the contribution of fossil sources has decreased (6–16%) significantly, and non-fossil sources have become the main part of carbonaceous aerosols, which verified the effectiveness of air quality management.
In this study, we investigated the characteristics and changes in the sources of carbonaceous...
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