Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 20
Articles | Volume 25, issue 20
https://doi.org/10.5194/acp-25-13711-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-13711-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 20
Measurement report
 | 
24 Oct 2025
Measurement report |  | 24 Oct 2025

Measurement report: Molecular insights into organic aerosol sources and formation at a regional background site in South China

Hongxing Jiang, Yuanghang Deng, Yunxi Huo, Fengwen Wang, Yingjun Chen, and Hai Guo

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Short summary
We combined the use of a series of online and offline high-resolution mass spectrometer to characterize the chemical composition and sources of organic aerosols in a background site of south China from bulk to molecular levels. We suggested that anthropogenic source dominated the OA origins, and the gas-phase and particle-phase oxidation processes are conducive to the formation of sulfur-containing and nitrogen-containing compounds, respectively.
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