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ACP | Articles | Volume 19, issue 15
Atmos. Chem. Phys., 19, 10073–10085, 2019
https://doi.org/10.5194/acp-19-10073-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 19, 10073–10085, 2019
https://doi.org/10.5194/acp-19-10073-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 09 Aug 2019

Research article | 09 Aug 2019

Predictions of diffusion rates of large organic molecules in secondary organic aerosols using the Stokes–Einstein and fractional Stokes–Einstein relations

Erin Evoy et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Wenzel on behalf of the Authors (18 Jul 2019)  Author's response    Manuscript
ED: Publish as is (18 Jul 2019) by Thorsten Bartels-Rausch
AR by Erin Evoy on behalf of the Authors (18 Jul 2019)  Author's response    Manuscript
Publications Copernicus
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Short summary
We measured the diffusion rates of organic molecules in a number of proxies for secondary organic aerosol (SOA) and compared measured diffusion with predictions from two relations: the Stokes–Einstein relation and a fractional Stokes–Einstein relation. The fractional relation does a better job of predicting diffusion rates in this case. Output from an atmospheric model shows that mixing times predicted using the two relations differ by up to 1 order of magnitude at an altitude of ~ 3 km.
We measured the diffusion rates of organic molecules in a number of proxies for secondary...
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