Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 2
Articles | Volume 26, issue 2
https://doi.org/10.5194/acp-26-1145-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-1145-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 2
Research article
 | 
23 Jan 2026
Research article |  | 23 Jan 2026

Source-resolved volatility and oxidation state decoupling in wintertime organic aerosols in Seoul

Hwajin Kim, Jiwoo Jeong, Jihye Moon, and Hyun Gu Kang

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Short summary
We investigated how organic particles behave during severe winter haze in Seoul using advanced real-time measurements. We found that even highly oxidized particles can remain volatile, and a rare nitrogen-containing type emerges under cold, stagnant conditions. We interpret both as products of limited atmospheric processing and combustion-related sources. These findings help improve understanding of pollution formation and evolution.
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