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

Ham, Suhan; Babar, Zaeem Bin; Lee, Jae Bong; Lim, Ho-Jin; Song, Mijung

doi:https://doi.org/10.5194/acp-19-9321-2019

Articles | Volume 19, issue 14

https://doi.org/10.5194/acp-19-9321-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-9321-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 14

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, Zaeem Bin Babar, Jae Bong Lee, Ho-Jin Lim, and Mijung Song

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Final revised paper (published on 22 Jul 2019)
Supplement to the final revised paper
Preprint (discussion started on 24 Jan 2019)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'review of Ham et al.', Anonymous Referee #1, 28 Feb 2019
- AC1: 'Response to Referee #1', Mijung SONG, 03 May 2019
RC2: 'Reviewer Comments to Ham et al.', Anonymous Referee #2, 04 Mar 2019
- AC2: 'Response to Referee #2', Mijung SONG, 03 May 2019
RC3: 'Review of Ham et al. (2019)', Anonymous Referee #3, 15 Mar 2019
- AC3: 'Response to Referee #3', Mijung SONG, 03 May 2019

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.