Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 15, issue 23
Articles | Volume 15, issue 23
https://doi.org/10.5194/acp-15-13615-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-13615-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 15, issue 23
Research article
 | 
09 Dec 2015
Research article |  | 09 Dec 2015

Viscosity controls humidity dependence of N2O5 uptake to citric acid aerosol

G. Gržinić, T. Bartels-Rausch, T. Berkemeier, A. Türler, and M. Ammann

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Short summary
The heterogeneous loss of dinitrogen pentoxide (N2O5) to citric acid aerosol, a proxy for highly oxygenated secondary organic aerosol, is shown to be substantially lower than to other aqueous organic aerosol proxies investigated previously. This is attributed to the widely changing viscosity within the atmospherically relevant humidity range. It may explain some of the unexpectedly low loss rates of N2O5 to aerosol particles derived from field studies.
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