Aloft in the stratosphere it protects us from dangerous ultraviolet radiation while in the troposphere where we live it is a noxious pollutant.
Particles likewise play a central role in pollution and climate.
This seminar will discuss the formation of atmospheric particles and their physical and chemical interactions with ozone. Particles impact the intensity of radiation that drives photochemical smog formation and provide surfaces for ozone destruction reactions. Results from recent field experiments suggest that reactions involving sea salt particles can dominate the chemistry of the lower atmosphere.