Multi-generation chemical aging of <i>α</i>-pinene ozonolysis products by reactions with OH

Wang, Ningxin; Kostenidou, Evangelia; Donahue, Neil M.; Pandis, Spyros N.

doi:https://doi.org/10.5194/acp-18-3589-2018

Articles | Volume 18, issue 5

https://doi.org/10.5194/acp-18-3589-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-3589-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 5

Research article

|

12 Mar 2018

Research article |

| 12 Mar 2018

Multi-generation chemical aging of α-pinene ozonolysis products by reactions with OH

Ningxin Wang, Evangelia Kostenidou, Neil M. Donahue, and Spyros N. Pandis

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Final revised paper (published on 12 Mar 2018)
Supplement to the final revised paper
Preprint (discussion started on 29 Aug 2017)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Wang et al.', Anonymous Referee #1, 20 Sep 2017
- AC2: 'Response to Referee #1', Spyros Pandis, 05 Dec 2017
RC2: 'Aging of SOA', Anonymous Referee #2, 27 Sep 2017
- AC1: 'Response to Referee #2', Spyros Pandis, 05 Dec 2017

Peer-review completion

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

AR by Spyros Pandis on behalf of the Authors (30 Dec 2017) Author's response Manuscript

ED: Publish subject to technical corrections (15 Jan 2018) by James B. Burkholder

AR by Spyros Pandis on behalf of the Authors (19 Jan 2018) Manuscript

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Short summary

This study investigates aging in the α-pinene ozonolysis system with hydroxyl radicals (OH) through smog chamber experiments. After an equivalent of 2–4 days of typical atmospheric oxidation conditions, homogeneous OH oxidation of the α-pinene ozonolysis products resulted in a 20–40 % net increase in the organic aerosol concentration and an increase in aerosol O : C by up to 0.04. The relative humidity in the 5–50 % range had a minimum effect on aging.