This presentation will describe our recent experiments on condensed-phase photochemistry of organic compounds, which are commonly found in primary and secondary organic aerosols. The exposure of organic aerosols to solar radiation produces a number of important effects: the chemical composition of aerosols changes; the particles tend to lose material due to the preferential photodegradation of larger, less volatile compounds leading to smaller, more volatile products; the light absorption properties of the organic material changes. These effects have important consequences for understanding the effect of aerosol particles on climate and health.

Condensed-phase photochemical processes in atmospheric particulate matter

2019 Fall National Meeting

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