Effects of water-soluble organic carbon on aerosol pH

Battaglia Jr., Michael A.; Weber, Rodney J.; Nenes, Athanasios; Hennigan, Christopher J.

doi:https://doi.org/10.5194/acp-19-14607-2019

Articles | Volume 19, issue 23

https://doi.org/10.5194/acp-19-14607-2019

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

https://doi.org/10.5194/acp-19-14607-2019

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

Articles | Volume 19, issue 23

Research article

|

03 Dec 2019

Research article |

| 03 Dec 2019

Effects of water-soluble organic carbon on aerosol pH

Michael A. Battaglia Jr., Rodney J. Weber, Athanasios Nenes, and Christopher J. Hennigan

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Final revised paper (published on 03 Dec 2019)
Preprint (discussion started on 30 Apr 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, Battaglia et al.', Anonymous Referee #1, 10 Jun 2019
RC2: 'Review of “Effects of Water-soluble Organic Carbon on Aerosol pH”', Anonymous Referee #2, 12 Jul 2019
AC1: 'Response to Referee Reports', Christopher Hennigan, 22 Sep 2019

Peer-review completion

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

AR by Christopher Hennigan on behalf of the Authors (01 Oct 2019) Author's response Manuscript

ED: Publish as is (12 Oct 2019) by Alexander Laskin

AR by Christopher Hennigan on behalf of the Authors (15 Oct 2019)

Short summary

The effects of water-soluble organic carbon (WSOC) on aerosol pH were characterized for aqueous-phase particles containing a mixture of inorganics and organics. The ISORROPIA-II and E-AIM models were used in conjunction with AIOMFAC to quantify the effect of organics on aerosol pH through (1) changes to the aerosol liquid water content and (2) changes to the hydrogen ion activity coefficient. The study included both organic acids and nonacids, at RH levels ranging from 70 to 90 %.