Information - AS3.02 Aerosol Chemistry and Microphysics (General Session)
Event Information
Focal Points: The Chemistry of Aging and its Effect on Microphysical Properties of Aerosols
Laboratory studies indicate that particles age by oxidative and photo-oxidative heterogeneous processes. Chamber and field studies indicate that oligomerisation processes lead to extra fixation of otherwise too volatile organic compounds. Whilst oligomerization reduces the number of solute molecules, oxidative degradation can enhance polarity and thus the water soluble fraction, or lead to evaporation of small fragments. Both processes should thus affect: the partitioning of both inorganic and organic material; the interaction with water vapor; and cloud droplet activation. Another important facet is that chemical aging modifies organic compounds which serve as markers and tracers, which if not taken into account may lead to misinterpretation of source strength and transformation processes.
The session will comprise
Heterogeneous Processes on Particles
Homogeneous Processes in the Condensed Phase of Aerosols
Physico-Chemical Properties of aged Aerosols
We invite field, laboratory, and process modelling studies for a vivid interactive discussion.
Preliminary List of Solicited Speakers
Prof. Dr. M. Andreae, Max Planck-Institut für Chemie, Mainz, Germany
Dr. Gordon McFiggans, The University of Manchester, Manchester, UK
Prof. Dr. Joel A. Thornton, University of Washington, Seattle, USA
Co-Sponsorship
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