Probing the Microphysical Properties of Single SOA (Secondary Organic Aerosol) Particles
Grazia Rovelli1, Young-Chul Song1, Kelly L. Pereira2, Jacqueline F. Hamilton2, David O. Topping3 and Jonathan P. Reid1
1School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
2Wolfston Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, YO10 5DD, UK
3School of Earth, Atmospheric and Environmental Science, University of Manchester, M13 9PL, UK
The characterisation of the microphysical properties of secondary organic aerosols (SOA) is key to improve our knowledge of their dynamic behaviour in the atmosphere and their effects on climate, as well as to refine their representation in atmospheric models. In this work, an electrodynamic balance was used to confine individual α-pinene SOA particles, allowing the characterisation of their equilibrium hygroscopic response, optical properties and kinetics of gas-particle partitioning of water and SVOCs.