Articles | Volume 25, issue 22
https://doi.org/10.5194/acp-25-16315-2025
https://doi.org/10.5194/acp-25-16315-2025
Measurement report
 | 
20 Nov 2025
Measurement report |  | 20 Nov 2025

Measurement report: Molecular characterization of organic aerosol in coastal environments using offline FIGAERO-I-CIMS

Yuping Chen, Lingling Xu, Xiaolong Fan, Ziyi Lin, Chen Yang, Gaojie Chen, Ronghua Zheng, Youwei Hong, Mengren Li, Yanru Zhang, and Jinsheng Chen

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Short summary
This study investigates the molecular characteristics and chemical evolution of organic aerosol (OA) in contrasting urban and seaside environments by offline Chemical Ionization Mass Spectrometry. Urban OA was enriched in aromatic species, while seaside OA featured aliphatic and highly oxidized compounds. Marine-derived humid air masses promoted aqueous/heterogeneous phase OA formation, leading to a higher oxidation state.
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