Secondary organic aerosol formation from nitrate radical oxidation of styrene: aerosol yields, chemical composition, and hydrolysis of organic nitrates

Wang, Yuchen; Zhang, Xiang; Huang, Yuanlong; Liang, Yutong; Ng, Nga L.

doi:https://doi.org/10.5194/acp-25-5215-2025

Articles | Volume 25, issue 10

https://doi.org/10.5194/acp-25-5215-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-5215-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 10

Research article

|

21 May 2025

Research article |

| 21 May 2025

Secondary organic aerosol formation from nitrate radical oxidation of styrene: aerosol yields, chemical composition, and hydrolysis of organic nitrates

Yuchen Wang, Xiang Zhang, Yuanlong Huang, Yutong Liang, and Nga L. Ng

Supplement

https://doi.org/10.5194/acp-25-5215-2025-supplement

Data sets

Overview of ICARUS─A Curated, Open Access, Online Repository for Atmospheric Simulation Chamber Data (https://icarus.ucdavis.edu/) T. B. Nguyen et al. https://doi.org/10.1021/acsearthspacechem.3c00043

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Short summary

This work provides the first fundamental laboratory data to evaluate SOA (secondary organic aerosol) production from styrene and NO₃ chemistry. Additionally, the formation mechanisms of aromatic organic nitrates (ONs) are reported, highlighting that previously identified nitroaromatics in ambient field campaigns can be aromatic ONs. Finally, the hydrolysis lifetimes observed for ONs generated from styrene and NO₃ oxidation can serve as experimentally constrained parameters for modeling hydrolysis of aromatic ONs in general.