Articles | Volume 15, issue 9
Atmos. Chem. Phys., 15, 5211–5228, 2015
https://doi.org/10.5194/acp-15-5211-2015
Atmos. Chem. Phys., 15, 5211–5228, 2015
https://doi.org/10.5194/acp-15-5211-2015

Research article 11 May 2015

Research article | 11 May 2015

Fine-particle water and pH in the southeastern United States

H. Guo et al.

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Mirena Feist-Polner on behalf of the Authors (07 Apr 2015)  Author's response
ED: Referee Nomination & Report Request started (13 Apr 2015) by Barbara Ervens
RR by Anonymous Referee #1 (15 Apr 2015)
ED: Publish subject to technical corrections (17 Apr 2015) by Barbara Ervens
AR by Hongyu Guo on behalf of the Authors (17 Apr 2015)  Author's response    Manuscript
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Short summary
Particle pH can affect many aerosol processes, including gas-particle partitioning, SOA formation, and mobilization of toxic redox metals. pH is challenging to directly measure and often improperly characterized by proxies like ion balances or molar ratios of measured aerosol ionic species. We present a detailed analysis predicting pH with a thermodynamic model, verify the prediction, and test pH sensitivity to model inputs based on data from the SOAS field campaign.
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