Articles | Volume 17, issue 11
Atmos. Chem. Phys., 17, 6907–6923, 2017
https://doi.org/10.5194/acp-17-6907-2017
Atmos. Chem. Phys., 17, 6907–6923, 2017
https://doi.org/10.5194/acp-17-6907-2017

Research article 13 Jun 2017

Research article | 13 Jun 2017

Diurnal fluxes of HONO above a crop rotation

Sebastian Laufs et al.

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AR by Jörg Kleffmann on behalf of the Authors (19 Apr 2017)  Author's response    Manuscript
ED: Publish subject to technical corrections (12 May 2017) by James Roberts
AR by Jörg Kleffmann on behalf of the Authors (15 May 2017)  Author's response    Manuscript
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Short summary
Sources of nitrous acid (HONO), a major precursor of the OH radical, are still under controversial discussion. Since mainly ground surface sources have been proposed, HONO fluxes were measured above an agricultural field. Positive daytime fluxes were observed which showed strong correlation with the product of the NO2 concentration and J(NO2). These results indicate HONO formation by photosensitized heterogeneous conversion of NO2 on soil surfaces as observed in recent laboratory studies.
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