Multi-generation OH oxidation as a source for highly oxygenated organic molecules from aromatics

Garmash, Olga; Rissanen, Matti P.; Pullinen, Iida; Schmitt, Sebastian; Kausiala, Oskari; Tillmann, Ralf; Zhao, Defeng; Percival, Carl; Bannan, Thomas J.; Priestley, Michael; Hallquist, Åsa M.; Kleist, Einhard; Kiendler-Scharr, Astrid; Hallquist, Mattias; Berndt, Torsten; McFiggans, Gordon; Wildt, Jürgen; Mentel, Thomas F.; Ehn, Mikael

doi:https://doi.org/10.5194/acp-20-515-2020

Articles | Volume 20, issue 1

https://doi.org/10.5194/acp-20-515-2020

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

https://doi.org/10.5194/acp-20-515-2020

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

Articles | Volume 20, issue 1

Research article

|

15 Jan 2020

Research article |

| 15 Jan 2020

Multi-generation OH oxidation as a source for highly oxygenated organic molecules from aromatics

Olga Garmash, Matti P. Rissanen, Iida Pullinen, Sebastian Schmitt, Oskari Kausiala, Ralf Tillmann, Defeng Zhao, Carl Percival, Thomas J. Bannan, Michael Priestley, Åsa M. Hallquist, Einhard Kleist, Astrid Kiendler-Scharr, Mattias Hallquist, Torsten Berndt, Gordon McFiggans, Jürgen Wildt, Thomas F. Mentel, and Mikael Ehn

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Final revised paper (published on 15 Jan 2020)
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Preprint (discussion started on 26 Jun 2019)
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Interactive discussion

Status: closed

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

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RC1: 'review', Anonymous Referee #1, 06 Aug 2019
RC2: 'Anonymous Review', Anonymous Referee #2, 27 Aug 2019
AC1: 'Response to referees', Olga Garmash, 31 Oct 2019

Peer-review completion

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

AR by Olga Garmash on behalf of the Authors (04 Nov 2019) Author's response Manuscript

ED: Publish as is (08 Nov 2019) by Nga Lee Ng

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Olga Garmash on behalf of the Authors (08 Jan 2020) Author's adjustment Manuscript

EA: Adjustments approved (12 Jan 2020) by Nga Lee Ng

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Short summary

Highly oxygenated organic molecules (HOMs) facilitate aerosol formation in the atmosphere. Using NO₃⁻ chemical ionization mass spectrometry we investigated HOM composition and yield in oxidation of aromatic compounds at different reactant concentrations, in the presence of NO_x and seed aerosol. Higher OH concentrations increased HOM yield, suggesting multiple oxidation steps, and affected HOM composition, potentially explaining in part discrepancies in published secondary organic aerosol yields.