Aerosol pH and liquid water content determine when particulate matter is sensitive to ammonia and nitrate availability

Nenes, Athanasios; Pandis, Spyros N.; Weber, Rodney J.; Russell, Armistead

doi:https://doi.org/10.5194/acp-20-3249-2020

Articles | Volume 20, issue 5

https://doi.org/10.5194/acp-20-3249-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-3249-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 5

Research article

|

18 Mar 2020

Research article |

| 18 Mar 2020

Aerosol pH and liquid water content determine when particulate matter is sensitive to ammonia and nitrate availability

Athanasios Nenes, Spyros N. Pandis, Rodney J. Weber, and Armistead Russell

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Final revised paper (published on 18 Mar 2020)
Supplement to the final revised paper
Preprint (discussion started on 26 Sep 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of: “Aerosol pH and liquid water content determine when particulate matter is sensitive to ammonia and nitrate availability“', Anonymous Referee #1, 13 Nov 2019
- AC1: 'Reply', Athanasios Nenes, 04 Jan 2020
RC2: 'Review of acp-2019-840', Anonymous Referee #2, 14 Nov 2019
- AC2: 'Reply', Athanasios Nenes, 04 Jan 2020

Peer-review completion

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

AR by Athanasios Nenes on behalf of the Authors (04 Jan 2020) Author's response Manuscript

ED: Publish as is (13 Jan 2020) by Veli-Matti Kerminen

AR by Athanasios Nenes on behalf of the Authors (31 Jan 2020) Manuscript

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Short summary

We show that aerosol acidity (pH) and liquid water content naturally emerge as previously ignored parameters that drive particulate matter formation in the atmosphere, and its sensitivity to emissions of ammonia and nitric acid. The simple framework presented is easily applied to ambient measurements or model output, and it provides the chemical regime of PM sensitivity to ammonia and nitric acid availability.