Articles | Volume 26, issue 8
https://doi.org/10.5194/acp-26-5553-2026
https://doi.org/10.5194/acp-26-5553-2026
Research article
 | 
23 Apr 2026
Research article |  | 23 Apr 2026

Impact of the Chinese Spring Festival on PM2.5 air quality in the Beijing-Tianjin-Hebei and surrounding region: a machine learning-based counterfactual modeling approach

Yuan Li, Qili Dai, Wubin Zhu, Xuan Liu, Jiandong Shen, Renchang Yan, Yunshan Li, Jing Ding, Young Su Lee, Yufen Zhang, and Yinchang Feng

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Latest update: 26 Oct 2026
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Short summary
Machine learning reveals air quality patterns shaped by holiday activities, with fireworks driving major PM2.5 spikes during Spring Festival.
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