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August 22, 2025Open Access

Source-Resolved Volatility and Oxidation State Decoupling in Wintertime Organic Aerosols in Seoul

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Authors

HKHwajin KimJJJiwoo JeongJMJihye Moon

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Overview

Field study demonstrates oxidation state and volatility decoupling in organic aerosols during severe winter haze in Seoul, indicating meteorological influences on aerosol evolution.

Key Points

  • Decoupling between oxidation state and volatility observed in organic aerosols, highlighting unexpected behavior.
  • Despite high oxygen-to-carbon ratios, more-oxidized organic aerosols exhibited high volatility under stagnant conditions.
  • Field investigation utilized high-resolution time-of-flight aerosol mass spectrometry to analyze aerosol sources.
  • Findings call for improved representation of organic aerosols in chemical transport models, especially during haze events.

Cite This Study

Kim et al. (2025) studied this question.

synapsesocial.com/papers/68af541fad7bf08b1eadb8fahttps://doi.org/10.5194/egusphere-2025-3738
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