The ability of reactions to take place at atmospheric interfaces depends upon the presence of reagents at (or near) those interfaces; that is, upon their location with respect to the overlying atmosphere. In particular, the release of gas phase products from the photolysis of nitrate anions, present in snow and ice, as well as in urban grime, depends upon the products being formed close enough to the atmospheric interface to escape to the gas phase prior to suffering other fates. I will discuss our recent work that tries to relate the location and physical state (solid or solution) of nitrate in such samples - measured primarily using Raman microscopy - to the photochemical release of gas phase nitrogen oxides.<br/>

Location, location: Chemical morphology and reactivity at environmental interfaces

254th National Meeting (2017)

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