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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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Mijung SONG on behalf of the Authors (12 May 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (21 May 2019) by Jason Surratt
RR by Anonymous Referee #1 (24 May 2019)
RR by Anonymous Referee #3 (30 May 2019)
ED: Publish subject to minor revisions (review by editor) (30 May 2019) by Jason Surratt
AR by Mijung SONG on behalf of the Authors (09 Jun 2019)  Author's response    Manuscript
ED: Publish as is (25 Jun 2019) by Jason Surratt
AR by Mijung SONG on behalf of the Authors (28 Jun 2019)  Author's response    Manuscript
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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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