Shifting patterns of Ozone Season due to policy and human activity in Beijing between 2013 and 2023
- 1Beijing Municipal Ecological and Environmental Monitoring Center (Beijing, China)
Abstract
Since 2013, Beijing has implemented a series of stringent measures to control air pollution, resulting in significant improvements in air quality. This study examines the decadal evolution of surface ozone in Beijing from 2013 to 2023 against the backdrop of continuous emission reduction policies. The Ozone Season in Beijing exhibited pronounced interannual variability, while linear trend analysis indicated a tendency toward prolonged duration. Low-percentile concentrations of the maximum 8 h moving average ozone (MDA8) showed a statistically significant upward trend, whereas mean and high-percentile values exhibited nonsignificant monotonic trends. The ozone exposure window shifted toward later hours, particularly during the cold season. Diurnal peak concentrations decreased, while trough concentrations increased, leading to a flattened diurnal variation. Furthermore, both the maximum ozone production and loss rates decreased in absolute magnitude, with the production peak tending to occur earlier in the day. These findings establish an observational baseline for understanding urban ozone evolution under intensified emission controls and provide implications for future policy formulation and public health protection strategies.
Versions
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BibTeX
@article{li2026shifting,
title = {{Shifting patterns of Ozone Season due to policy and human activity in Beijing between 2013 and 2023}},
author = {Qian Li and Xiaofei Dong and Yuanxi Guo and Xiue Shen and Zhang Zhang and Chunsheng Zhao},
journal = {Atmospheric Chemistry and Physics},
year = {2026},
month = oct,
doi = {10.5194/acp-26-14559-2026},
url = {https://acp.copernicus.org/articles/26/14559/2026/},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Shifting patterns of Ozone Season due to policy and human activity in Beijing between 2013 and 2023
AU - Qian Li
AU - Xiaofei Dong
AU - Yuanxi Guo
AU - Xiue Shen
AU - Zhang Zhang
AU - Chunsheng Zhao
PY - 2026
DA - 2026/10/15
JO - Atmospheric Chemistry and Physics
DO - 10.5194/acp-26-14559-2026
UR - https://acp.copernicus.org/articles/26/14559/2026/
AB - Since 2013, Beijing has implemented a series of stringent measures to control air pollution, resulting in significant improvements in air quality. This study examines the decadal evolution of surface ozone in Beijing from 2013 to 2023 against the backdrop of continuous emission reduction policies. The Ozone Season in Beijing exhibited pronounced interannual variability, while linear trend analysis indicated a tendency toward prolonged duration. Low-percentile concentrations of the maximum 8 h moving average ozone (MDA8) showed a statistically significant upward trend, whereas mean and high-percentile values exhibited nonsignificant monotonic trends. The ozone exposure window shifted toward later hours, particularly during the cold season. Diurnal peak concentrations decreased, while trough concentrations increased, leading to a flattened diurnal variation. Furthermore, both the maximum ozone production and loss rates decreased in absolute magnitude, with the production peak tending to occur earlier in the day. These findings establish an observational baseline for understanding urban ozone evolution under intensified emission controls and provide implications for future policy formulation and public health protection strategies.
SN - 1680-7324
ER -