Detailed budget analysis of HONO in central London reveals a missing daytime  source

Lee, J. D.; Whalley, L. K.; Heard, D. E.; Stone, D.; Dunmore, R. E.; Hamilton, J. F.; Young, D. E.; Allan, J. D.; Laufs, S.; Kleffmann, J.

doi:https://doi.org/10.5194/acp-16-2747-2016

Articles | Volume 16, issue 5

https://doi.org/10.5194/acp-16-2747-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-2747-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 5

Research article

|

04 Mar 2016

Research article |

| 04 Mar 2016

Detailed budget analysis of HONO in central London reveals a missing daytime source

J. D. Lee, L. K. Whalley, D. E. Heard, D. Stone, R. E. Dunmore, J. F. Hamilton, D. E. Young, J. D. Allan, S. Laufs, and J. Kleffmann

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Final revised paper (published on 04 Mar 2016)
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Preprint (discussion started on 18 Aug 2015)
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Interactive discussion

Status: closed

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

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- Supplement

RC C7336: 'secondary HONO production during ClearfLo 2012', Anonymous Referee #1, 28 Sep 2015
- AC C10355: 'Response to referee 1', James Lee, 11 Dec 2015
RC C8482: 'Reviewer Comments', Anonymous Referee #2, 26 Oct 2015
- AC C10356: 'Response to referee 2', James Lee, 11 Dec 2015

Peer-review completion

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

AR by James Lee on behalf of the Authors (14 Jan 2016) Author's response Manuscript

ED: Referee Nomination & Report Request started (29 Jan 2016) by Robert McLaren

RR by Anonymous Referee #3 (15 Feb 2016)

ED: Publish subject to technical corrections (23 Feb 2016) by Robert McLaren

AR by James Lee on behalf of the Authors (24 Feb 2016) Manuscript

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Short summary

This paper presents field measurements of HONO and a range of other gas phase and particulate species from an urban background site in London. The measured daytime HONO cannot be reproduced with a simple box model and thus a significant daytime missing source of HONO is present. We show that this missing source could be responsible for 40 % of the OH radical source and 57 % of the OH initiation; hence its potential importance for atmospheric oxidation and ozone production.