EGU2020-11986
https://doi.org/10.5194/egusphere-egu2020-11986
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

New insights into secondary organic aerosol from nitrate oxidation of isoprene in the atmospheric simulation chamber SAPHIR

Juliane L. Fry1, Bellamy Brownwood1, Thorsten Hohaus2, Avtandil Turdziladze2, Philip Carlsson2, Epameinondas Tsiligiannis3, Matthias Hallquist3, Anna Novelli2, Hendrik Fuchs2, and the NO3Isop Campaign at SAPHIR chamber, August 2018*
Juliane L. Fry et al.
  • 1Chemistry Department, Reed College, OR, United States of America (fry@reed.edu)
  • 2Institute of Energy and Climate Research, Forschungszentrum Juelich, Germany
  • 3Chemistry Department, Gothenburg University, Sweden
  • *A full list of authors appears at the end of the abstract

Experiments at a set of atmospherically relevant conditions were performed in the atmospheric simulation chamber SAPHIR, investigating the oxidation of isoprene by the nitrate radical (NO3). A comprehensive set of instruments detected trace gases, radicals, aerosol properties and hydroxyl (OH) and NO3 radical reactivity. The chemical conditions in the chamber were varied to change the fate of the peroxy radicals (RO2) formed after the reaction between NO3 and isoprene, and seed aerosol of varying composition was added to initiate gas/aerosol partitioning. This presentation discusses observed gas/aerosol partitioning of the major organic nitrate products and summarizes the observations of secondary organic aerosol yield.

NO3Isop Campaign at SAPHIR chamber, August 2018:

Pete Edwards, Patrick Dewald, Justin Shenolikar, Nils Friedrich, John Crowley, Steve Brown, Francois Bernard, Li Zhou, Changmin Cho, Birger Bohn, Franz Rohrer, Ruper Holzinger, Thomas Mentel, Sungah Kang, Luisa Hantschke, Ralf Tillmann, David Reimer, Rongrong Wu

How to cite: Fry, J. L., Brownwood, B., Hohaus, T., Turdziladze, A., Carlsson, P., Tsiligiannis, E., Hallquist, M., Novelli, A., and Fuchs, H. and the NO3Isop Campaign at SAPHIR chamber, August 2018: New insights into secondary organic aerosol from nitrate oxidation of isoprene in the atmospheric simulation chamber SAPHIR, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-11986, https://doi.org/10.5194/egusphere-egu2020-11986, 2020