Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 20
Articles | Volume 26, issue 20
https://doi.org/10.5194/acp-26-14559-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-14559-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 20
Research article
 | 
15 Oct 2026
Research article |  | 15 Oct 2026

Shifting patterns of Ozone Season due to policy and human activity in Beijing between 2013 and 2023

Qian Li, Xiaofei Dong, Yuanxi Guo, Xiue Shen, Zhang Zhang, and Chunsheng Zhao

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Short summary
Beijing's ozone trends (2013–2023) show a lengthening Ozone Season despite strict emission controls. While low-percentile ozone levels rose, mean and high-percentile values remained stable. Key shifts include a later daily exposure window, flattened diurnal cycles (lower peaks, higher troughs), and reduced ozone production/loss rates. These findings establish a baseline for urban pollution evolution and provide critical insights for future policy formulation and public health protection.
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