Friday, November 12. Refreshments in Room 231 at 3:05 PM, followed by the colloquiuim in 224 at 3:20 PM.
Air quality in major U.S. cities has improved considerably over the past 40 years. New studies show that photochemical ozone and aerosol pollution has significant health effects at ambient concentrations currently found in most major urban areas. Recent air quality studies in Houston, Los Angeles and Mexico City have strategically combined the collection of meteorological and atmospheric chemistry data to better understand the processes resulting in pollution exceedance events. Findings from these studies have emphasized the critical relationship between meteorology and air quality. The new more stringent EPA air pollution standards that have been enacted in the past two years in particular highlight the significant role that long range transport of pollution plays on local air quality. As cities continue to grow, air quality challenges may also become more difficult to address. Consequently, new technologies and energy sources may be needed to address this considerable public health issue.