HR: 09:05h
AN: A11D-04 INVITED    [Abstracts]
TI: Hemispheric Transport of Air Pollutants: Issues, Progress, and Implications
AU: * Keating, T
EM: keating.terry@epa.gov
AF: US Environmental Protection Agency, Office of Air and Radiation (OAR/OPAR) 1200 Pennsylvania Ave. NW Mail Code 6103A (Room 5442), Washington, DC 20460, United States
AB: Once thought of as only a local or regional issue, air quality is now understood to be influenced by local, regional, hemispheric, and global phenomena. There is well-documented evidence from ground-, aircraft-, and satellite- based observations for the intercontinental transport of ozone, aerosols, mercury, and some persistent organic pollutants. Global and regional models have provided a range of estimates of the influence of emissions on one continent on concentrations and deposition levels on another continent. These estimates have been difficult to compare and the significance of this intercontinental influence for the design of air pollution control policies is not well understood. The Task Force on Hemispheric Transport of Air Pollutants organized under the Convention on Long-Range Transboundary Air Pollution is developing the first systematic assessment of intercontinental transport and hemispheric pollution in the Northern Hemisphere. This presentation by one of the co-chairs of the Task Force will explore the motivations behind the creation of the Task Force, review its progress, and discuss the implications of its work for the development of domestic and international air quality management policies.
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0368 Troposphere: constituent transport and chemistry
DE: 0466 Modeling
DE: 6324 Legislation and regulations (6615)
DE: 6620 Science policy (0485)
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting