Coupling of organic and inorganic aerosol systems and the effect on gas&ndash;particle partitioning in the southeastern US

Pye, Havala O. T.; Zuend, Andreas; Fry, Juliane L.; Isaacman-VanWertz, Gabriel; Capps, Shannon L.; Appel, K. Wyat; Foroutan, Hosein; Xu, Lu; Ng, Nga L.; Goldstein, Allen H.

doi:https://doi.org/10.5194/acp-18-357-2018

Articles | Volume 18, issue 1

https://doi.org/10.5194/acp-18-357-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-357-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 1

Research article

|

12 Jan 2018

Research article |

| 12 Jan 2018

Coupling of organic and inorganic aerosol systems and the effect on gas–particle partitioning in the southeastern US

Havala O. T. Pye, Andreas Zuend, Juliane L. Fry, Gabriel Isaacman-VanWertz, Shannon L. Capps, K. Wyat Appel, Hosein Foroutan, Lu Xu, Nga L. Ng, and Allen H. Goldstein

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Final revised paper (published on 12 Jan 2018)
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Preprint (discussion started on 18 Jul 2017)
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Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review Report', Anonymous Referee #1, 13 Aug 2017
RC2: 'Referee Comment', Anonymous Referee #2, 14 Aug 2017
SC1: 'Weber Nenes Guo comment', Rodney Weber, 21 Aug 2017
- AC1: 'Response to Weber et al.', Havala Pye, 01 Sep 2017

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Havala Pye on behalf of the Authors (11 Oct 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (26 Oct 2017) by Yafang Cheng

RR by Anonymous Referee #1 (11 Nov 2017)

ED: Publish as is (28 Nov 2017) by Yafang Cheng

AR by Havala Pye on behalf of the Authors (29 Nov 2017) Author's response

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Short summary

Thermodynamic modeling revealed that some but not all measurements of ammonium-to-sulfate ratios are consistent with theory. The measurement diversity likely explains the previously reported range of results regarding the suitability of thermodynamic modeling. Despite particles being predominantly phase separated, organic–inorganic interactions resulted in increased aerosol pH and partitioning towards the particle phase for highly oxygenated organic compounds compared to traditional methods.