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June 7, 2026Environmental ResearchOpen Access

Synoptic-scale transport drives wintertime secondary organic aerosol variability and high-PM episodes in Seoul

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Authors

SLSuk Hyun LeeTJTaekyu JooSCSuyeon Choi

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Overview

Randomized trial investigates PM pollution drivers in Seoul, highlighting the impact of transport mechanisms.

Key Points

  • This research aims to identify the processes that affect wintertime secondary organic aerosol variability in Seoul.
  • Investigated winter 2022 measurements of non-refractory submicron aerosols using HR-ToF-AMS.
  • Applied positive matrix factorization to resolve six organic aerosol factors.
  • Conducted synoptic meteorological analysis to correlate air mass transport with PM episodes.
  • Identified six organic aerosol factors, with pronounced impacts from POA and OOA during pollution events.
  • Noted significant increases in OOA2 during high-PM episodes with warm, humid air masses from the southwest.
  • Evidenced co-transport of SOA precursors with increased toluene and O3 during high-OOA2 periods.

Cite This Study

Lee et al. (2026) studied this question.

synapsesocial.com/papers/6a250a3c7def13d035e1a7bfhttps://doi.org/10.1016/j.envres.2026.124969
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Source-resolved volatility and oxidation state decoupling in wintertime organic aerosols in Seoul2026
  2. 2Emission Characteristics of Volatile Organic Compounds and Organic Aerosol Evolution with OH Exposure in Seoul During Winter2026
  3. 3Understanding of the Wintertime Atmospheric Aerosol Properties with Explainable Machine Learning2024
  4. 4In situ measurement of organic aerosol molecular markers in urban Hong Kong during a summer period: temporal variations and source apportionment2024 · 3 citations
  5. 5Source-Resolved Volatility and Oxidation State Decoupling in Wintertime Organic Aerosols in Seoul2025