Description:

Far from operating as independent cycles, the atmospheric oxidation chains of organic, sulfur, and nitrogen compounds are intrinsically linked through their cross-reactions, common sources, particle-phase chemistry, and combination in the forms of organonitrogen and organosulfur compounds. The interactions of organics with sulfur and nitrogen affect the atmospheric budgets of ozone, particulate matter, and radicals, which in turn have important implications for air quality and climate. The goal of this session is to solicit recent observational, theoretical, experimental, and modeling studies related to the interplay between the reactive sulfur, nitrogen, and organic cycles in the atmospheric boundary layer and its broader impacts. Relevant research topics include, but are not limited to, organosulfate and organonitrate formation and fate, dimethyl sulfide chemistry, oxidation of S(IV) by organics, nitrate radical reactions with organics, the role of boundary layer mixing and the cloud aqueous phase in this interactive chemistry, and the implications to air quality and climate.