Research Topics: Experimental and theoretical studies in chemical kinetics and atmospheric chemical mechanisms; spectroscopic instrumentation development and applications; experimental determination of photochemical parameters; field measurement of particulate matter and trace gas species; exploration of regional and global chemical cycles; modeling of atmospheric transport, transformation and deposition of chemical constituents; modeling of atmospheric chemistry-climate interactions; physics of aerosols and aerosol instrumentation; boundary-layer transfer processes; atmospheric radiation; remote sensing; cloud and fog microphysics; formation of precipitation; atmospheric electricity, thunderstorm electrification and lightning.