Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 23
Articles | Volume 25, issue 23
https://doi.org/10.5194/acp-25-17907-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-17907-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 23
Research article
 | 
08 Dec 2025
Research article |  | 08 Dec 2025

Decadal changes in atmospheric ammonia and dry deposition across China inferred from space-ground measurements and model simulations

Fan Sun, Yu Cui, Jiayin Su, Mark W. Shephard, Shailesh K. Kharol, Yifan Zhang, Xuejing Shi, Junqing Zhang, Huili Liu, Qitao Xiao, Xiao Lu, Zhao-Cheng Zeng, Timothy J. Griffis, and Cheng Hu

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Short summary
This study used satellite data and models to track ammonia concentration and dry deposition across China from 2013 to 2023. Ammonia levels rose sharply, especially in urban and farming regions, with the North China Plain showing the highest values. Human activity was the main driver of change. These findings highlight growing environmental risks and provide key insights for managing air quality and nitrogen pollution in one of the world's major emission hotspots.
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