The surfaces of tropospheric aerosols can profoundly affect the composition of the atmosphere by serving as sites for heterogeneous reactions with trace gases. This presentation focuses on reactions occurring on sea spray aerosols (SSA) which represent one of the most abundant surfaces in the atmosphere. When bubbles burst at the surface of the ocean, SSA particles become enriched in organic species relative to inorganic salts. Due to complex interactions between water, ions, and organic species. the interface of SSA particles is highly complex and distinctly different from the bulk composition. This presentation will describe recent studies focusing on improving our understanding of the reactivity of realistic sea spray aerosols. A discussion on how the chemical complexity occurring at chemically complex interfaces results in unexpected behavior will be presented.

Heterogeneous reactions on atmospherically relevant sea spray aerosols

2019 Fall National Meeting

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