How well is OH production and loss understood particularly in unique environments
such as Antarctica and anthropogenic plumes?
What are the remote marine oxidants responsible for the formation of gas phase
sulfuric and methanesulfonic acids and DMSO at night?
How do MS/sulfate ratios observed in the Antarctic ice depend on DMS oxidation
chemistry and transport over the polar plateau?
What are the primary chemical compounds responsible for nucleation and growth?
Does ammonia have a unique role in controlling particle growth?
Why does nucleation observed in the lower troposphere occur at a much lower
concentration and with a weaker functional dependence on H2SO4 than predicted by
classical theory?
What is the role of particles formed by nucleation in cloud processes and climate?
New Research Thrusts
Development of an aircraft based ammonia measurement capability
Characterize the chemical composition of ambient ultrafine aerosols. Of particular
of interest are insoluble organic species
Develop new chemical ionization ion trap mass spectrometric measurement technique
for a broad range of oxygenated biogenic and anthropogenic compounds
