Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 18, issue 2
Articles | Volume 18, issue 2
https://doi.org/10.5194/acp-18-1171-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-1171-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 2
Research article
 | 
30 Jan 2018
Research article |  | 30 Jan 2018

The effects of isoprene and NOx on secondary organic aerosols formed through reversible and irreversible uptake to aerosol water

Marwa M. H. El-Sayed, Diana L. Ortiz-Montalvo, and Christopher J. Hennigan

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Short summary
We characterized the reversibility of aqSOA formed from isoprene at a location in the eastern United States. WSOCp evaporation with drying was observed systematically throughout the late spring and summer, indicating reversible aqSOA formation. The absolute reversible aqSOA concentrations, as well as the relative amount of reversible aqSOA, increased with decreasing NOx / isoprene ratios, suggesting that IEPOX or other low-NOx oxidation products were responsible for these effects.
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