Articles | Volume 25, issue 21
https://doi.org/10.5194/acp-25-14315-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-14315-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Nov 2025
Research article |
| 03 Nov 2025
| 03 Nov 2025
Reaction between linear perfluoroaldehydes and hydroperoxy radical in the atmosphere: reaction mechanisms, reaction kinetics modelling, and atmospheric implications
Zegang Dong
School of Materials Science and Engineering, Guizhou Minzu University, Guiyang, 550025, China
School of Chemistry and Chemistry Engineering, South China University of Technology, Guangzhou, 510006, China
Chaolu Xie
College of Physics and Mechatronic Engineering, Guizhou Minzu University, Guiyang, 550025, China
School of Materials Science and Engineering, Guizhou Minzu University, Guiyang, 550025, China
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Qinghao Guo, Haofei Zhang, Bo Long, Lehui Cui, Yiyang Sun, Hao Liu, Yaxin Liu, Yunting Xiao, Pingqing Fu, and Jialei Zhu
Atmos. Chem. Phys., 25, 9249–9262, https://doi.org/10.5194/acp-25-9249-2025, https://doi.org/10.5194/acp-25-9249-2025, 2025
Short summary
Short summary
Limonene, a natural compound from plants, reacts with pollutants to form airborne particles that influence air quality and climate. Using advanced models with explicit chemical mechanisms, we show how different reaction pathways shape organonitrate formation, with some increasing and others decreasing particle levels. This approach enhances predictions of pollution and climate impacts while deepening our understanding of how natural and human-made emissions interact in the atmosphere.
Chaolu Xie, Shuyu Li, and Bo Long
EGUsphere, https://doi.org/10.5194/egusphere-2025-2580, https://doi.org/10.5194/egusphere-2025-2580, 2025
Short summary
Short summary
Hydroxyacetonitrile is very important in the atmosphere, However, its chemical transformations are unclear. We develop theoretical methods and strategies to find a new reaction route for the sink of hydroxyacetonitrile by the reaction with Criegee intermediate. Moreover, in this study, the quantitative kinetics are also obtained, which improve the accuracy of atmospheric models. The reactions also provide further insights into the oxidation capacity of Criegee intermediates.
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Short summary
Perfluoroaldehydes are important products formed in the atmospheric oxidation of fluorinated compounds. However, their degradation routes are not clear. Here, we find a rapid route for the degradation of linear perfluoroaldehydes by hydroperoxy radical. The chemical processes are dominant over the corresponding oxidation processes by hydroxyl radical. The present findings are of great importance for elucidating the chemical transformation of linear perfluoroaldehydes in the atmosphere.
Perfluoroaldehydes are important products formed in the atmospheric oxidation of fluorinated...
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