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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Cited articles

Acker, K., Möller, D., Wieprecht, W., Meixner, F. X., Bohn, B., Gilge, S., Plass-Dülmer, C., and Berresheim, H.: Strong daytime production of OH from HNO2 at a rural mountain site, Geophys. Res. Lett., 33, L02809, https://doi.org/10.1029/2005GL024643, 2006a.
Alicke, B., Platt, U., and Stutz, J.: Impact of Nitrous Acid Photolysis on the Total Hydroxy Radical Budget During the Limitation of Oxidant Production/Pianura Padana Produzione di Ozono Study in Milan, J. Geophys. Res., 107, LOP 9-1–LOP 9-17, https://doi.org/10.1029/2000JD000975, 2002.
Amedro, D., Parker, A. E., Schoemaecker, C., and Fittschen, C.: Direct observation of OH radicals after 565 nm multi-photon excitation of NO2 in the presence of H2O, Chem. Phys. Lett., 513, 12–16, 2011.
Arens, F., Gutzwiller, L., Gäggeler, H. W., and Ammann, M.: The Reaction of NO2 with Solid Anthrarobin (1,2,10-trihydroxy-anthracene), Phys. Chem. Chem. Phys., 4, 3684–3690, 2002.
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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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