Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 13
Articles | Volume 26, issue 13
https://doi.org/10.5194/acp-26-9779-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-9779-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 13
Research article
 | 
13 Jul 2026
Research article |  | 13 Jul 2026

Relaxed Eddy Accumulation based Flux Measurement of Atmospheric Inorganic Acidic Species over Cropland under the Long-Term Exposure to Chemical Industry Emissions in a Chinese Megacity

Jingya Hua, Xinyu Wang, Yulian Wei, Jieya Sun, Zongjun Li, Zhongliang Huang, Qiongqiong Wang, and Huan Yu

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Short summary
We described the design and deployment of a flux measurement system to track acidic species at a vegetable farm in China's industrial-agricultural mixed zones. Bidirectional fluxes indicate the farmland was both sink and source. Nitrous acid and nitrate exchange was 10–100 times higher than those reported in the literature. Nitric acid emissions rose with wind speed, while nitrous acid increased at lower temperatures. The results help air pollution controls and protect farm ecosystems.
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