Division/Committee: [ENVR] Division of Environmental Chemistry

Aerosols are pivotal players in the chemistry of our changing environment, particularly the atmosphere where they impact both climate and health. Many of the most important effects that aerosols have on climate and health, including heterogeneous reactions, light scattering, water uptake, and health impacts can be traced to aerosol properties at the individual particle level. The challenge is that the atmospheric aerosol at any given time contains particles with different chemical compositions, morphologies, and ability to nucleate cloud droplets or ice crystals. Despite the importance of interactions at the single particle level with gaseous molecules and light, measurements have historically focused on properties of the entire aerosol population averaged together. In this symposium, we invite abstracts on any research using analysis or modeling single particles to gain unique insights based on consideration of the role of single particles. Example approaches encouraged include laboratory studies (e.g. chamber or flowtube), field measurements of single particles, computation chemistry probing chemistry of particles, and atmospheric modeling that incorporates different aerosol chemical composition (i.e. aerosol mixing state). Abstracts may include research on topics climate to air quality to human health and beyond that involve atmospheric aerosols.

Swarup China

Pacific Northwest National Laboratory

Appearances