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