Articles | Volume 16, issue 5
Atmos. Chem. Phys., 16, 2747–2764, 2016
https://doi.org/10.5194/acp-16-2747-2016
Atmos. Chem. Phys., 16, 2747–2764, 2016
https://doi.org/10.5194/acp-16-2747-2016

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 et al.

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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
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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.
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