Observation-constrained kinetic modeling of isoprene SOA formation in the atmosphere

Abstract ∼ ∼  57 % to the total modeled isoprene SOA. However, this contribution is intricately intertwined with IEPOX-derived SOA (IEPOX: isoprene-derived epoxydiols), posing challenges for their differentiation using bulk aerosol composition analysis (e.g., the aerosol mass spectrometer with positive matrix factorization). Furthermore, the SOA from these pathways may vary greatly, mainly dependent on the volatility estimation and treatment of particle-phase processes (i.e., photolysis and hydrolysis). Our findings emphasize that the various pathways to produce these low-volatility species should be considered in models to more accurately predict isoprene SOA formation. The new condensed isoprene chemical mechanism can be further incorporated into regional-scale air quality models, such as the Community Multiscale Air Quality Modelling System (CMAQ), to assess isoprene SOA formation on a larger scale.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Observation-constrained kinetic modeling of isoprene SOA formation in the atmosphere ; volume:24 ; number:10 ; year:2024 ; pages:6153-6175 ; extent:23 ; Atmospheric chemistry and physics ; 24, Heft 10 (2024), 6153-6175 (gesamt 23)

Beteiligte, Orts- und Zeitangaben

• Urheber: Shen, Chuanyang ; Yang, Xiaoyan ; Thornton, Joel ; Shilling, John ; Bi, Chenyang ; Isaacman-VanWertz, Gabriel ; Zhang, Haofei

Weitere Informationen

• DOI: 10.5194/acp-24-6153-2024
• URN: urn:nbn:de:101:1-2405300420106.923238099654
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 14.08.2025, 10:52 MESZ