Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 8
Articles | Volume 26, issue 8
https://doi.org/10.5194/acp-26-5477-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-26-5477-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 8
Research article
 | 
22 Apr 2026
Research article |  | 22 Apr 2026

Observational insights into atmospheric CO2 and CO at the urban canopy layer top in Metropolitan Shanghai, China

Shuang Fu, Xuemei Qing, Kunpeng Zang, Yi Lin, Shuo Liu, Yuanyuan Chen, Bingjiang Chen, Wei Gao, Martin Steinbacher, and Shuangxi Fang

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Short summary
Urban carbon dynamics are critical for climate action, yet remote background monitoring often misses key details. This study utilized the unique vantage point of the 632-m Shanghai Tower to investigate carbon dioxide and carbon monoxide dynamics directly above the urban core. Our research confirms such elevated observations can effectively track metropolitan-scale footprint, revealing fossil fuels as the dominant source (85%) of excess carbon dioxide and supporting targeted reduction measures.
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