Articles | Volume 19, issue 14
Atmos. Chem. Phys., 19, 9321–9331, 2019
https://doi.org/10.5194/acp-19-9321-2019
Atmos. Chem. Phys., 19, 9321–9331, 2019
https://doi.org/10.5194/acp-19-9321-2019

Research article 22 Jul 2019

Research article | 22 Jul 2019

Liquid–liquid phase separation in secondary organic aerosol particles produced from α-pinene ozonolysis and α-pinene photooxidation with/without ammonia

Suhan Ham et al.

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Latest update: 08 Dec 2021
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Short summary
We investigated LLPS in four different types of SOA particles generated from α-pinene ozonolysis and α-pinene photooxidation in the absence and presence of NH3. LLPS was observed in SOA particles produced from α-pinene ozonolysis at ~ 95.8 % RH and α-pinene ozonolysis with NH3 at ~ 95.4 % RH. However, LLPS was not observed in SOA particles produced from α-pinene photooxidation and α-pinene photooxidation with NH3. This result can help to more accurately predict the CCN properties of OA particles.
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