Carboxylic acids from limonene oxidation by ozone and hydroxyl radicals: insights into mechanisms derived using a FIGAERO-CIMS

Hammes, Julia; Lutz, Anna; Mentel, Thomas; Faxon, Cameron; Hallquist, Mattias

doi:https://doi.org/10.5194/acp-19-13037-2019

Articles | Volume 19, issue 20

https://doi.org/10.5194/acp-19-13037-2019

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

https://doi.org/10.5194/acp-19-13037-2019

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

Articles | Volume 19, issue 20

Research article

|

22 Oct 2019

Research article |

| 22 Oct 2019

Carboxylic acids from limonene oxidation by ozone and hydroxyl radicals: insights into mechanisms derived using a FIGAERO-CIMS

Julia Hammes, Anna Lutz, Thomas Mentel, Cameron Faxon, and Mattias Hallquist

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Final revised paper (published on 22 Oct 2019)
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Preprint (discussion started on 27 Sep 2018)
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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 of "Carboxylic acids from limonene oxidation by ozone and OH radicals: insights into mechanisms derived using a FIGAERO-CIMS" by J. Hammes et al.', Anonymous Referee #1, 25 Nov 2018
RC2: 'Referee comments', Anonymous Referee #2, 19 Dec 2018
AC1: 'Authors respons on Referee #1-2', M. Hallquist, 30 Apr 2019

Peer-review completion

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

AR by M. Hallquist on behalf of the Authors (10 Jul 2019) Author's response Manuscript

ED: Publish as is (25 Jul 2019) by Alexander Laskin

AR by M. Hallquist on behalf of the Authors (04 Sep 2019)

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Short summary

Identifying the chemical pathways of condensable products such as carboxylic acids is essential for predicting SOA formation. This identification is inherently difficult, as such products reside in both the gas and particulate phases. We measured acids, produced from atmospheric oxidation of limonene, in both phases and scrutinised the mechanistic understanding of their formation. The mechanisms explain nearly 75 % of the gas-phase signal at the lowest concentration (8.4 ppb, 23 % acid yield).