Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 19
Articles | Volume 26, issue 19
https://doi.org/10.5194/acp-26-14229-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-14229-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 19
Research article
 | 
09 Oct 2026
Research article |  | 09 Oct 2026

Light absorption properties and composition of water-soluble brown carbon in North China Plain: implication for an enhancing role of nitrogenous organic compounds

Can Wu, Huijun Zhang, Kehan Sun, Rongjie Li, Ziting Yan, Yubao Chen, Zheng Li, Binyu Xiao, Yanqin Ren, and Gehui Wang

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Short summary
Nitrogenous organic compounds represent the pivotal chromophores governing the optical properties of atmospheric brown carbon (BrC) across the North China Plain, which are mainly formed through ammonia-driven aqueous reactions. Accordingly, the mitigation of ammonia emissions is indispensable for the further abatement of haze and BrC pollution in this region.
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