Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 21, issue 9
Articles | Volume 21, issue 9
https://doi.org/10.5194/acp-21-7099-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-7099-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 9
Research article
 | 
10 May 2021
Research article |  | 10 May 2021

Increased primary and secondary H2SO4 showing the opposing roles in secondary organic aerosol formation from ethyl methacrylate ozonolysis

Peng Zhang, Tianzeng Chen, Jun Liu, Guangyan Xu, Qingxin Ma, Biwu Chu, Wanqi Sun, and Hong He

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Latest update: 25 Oct 2025
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Short summary
This work highlights the opposing effects of primary and secondary H2SO4 on both secondary organic aerosol (SOA) formation and constitutes. Our findings revealed that a substantial increase in secondary H2SO4 particles promoted the SOA formation of ethyl methacrylate with increasing SO2 in the absence of seed particles. However, increased primary H2SO4 with seed acidity enhanced ethyl methacrylate uptake but reduced its SOA formation in the presence of seed particles.
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