Developing accurate descriptions of interfacial chemistry in the oxidation of organic aerosol remains an outstanding challenge. Using model systems, we examine how the reactive uptake kinetics of hydroxyl radicals at the aerosol surface depends upon liquid water content and common atmospheric trace gases such NO and SO<sub>2</sub>.  In these systems, the OH reaction probability is observed to be a complex and non-linear function of these environmental variables and involves the complex interplay between molecular reactivity, free radical cycling, viscosity, hygroscopic growth and decomposition.<br/> <br/>

Interfacial chemistry of free radicals and the oxidation of organic aerosol

254th National Meeting (2017)

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