Professional Summary
Professor Keeler's research and teaching programs are at the interface between scientific disciplines striving to forge new interdisciplinary directions for environmental science and engineering. Centered around the broad topics of atmospheric sciences and environmental health his research areas encompass the development of new measurement and analytical tools necessary for investigations of the sources and fate of trace elements, and other pollutants, and their impacts on human health and the environment. His primary interests include the refinement and application of methods for the determination of low levels of trace elements in atmospheric and environmental media including aerosols, wet and dry deposition, cloud and fog water, and dew. Next generation precipitation and atmospheric sampling instruments are developed to meet the rigorous needs of today's environmental research. In addition, testing and application of wireless micro-analytical environmental applications from ambient and personal exposure monitoring for asthmatic children to ecosystem level monitoring of the levels and fluxes of pollutants. Prof. Keeler directs the University of Michigan Air Quality Laboratory (UMAQL) which includes state-of-the-art clean rooms and instrumentation for interdisciplinary studies including the Michigan Center for the Environment and Children's Health which is one of the 8 Children's Centers funded by NIEHS and USEPA. In addition, Dr. Keeler is the Director of the Global Change Laboratory on North Campus where ongoing long-term measurements of the atmosphere are providing data to investigate how changes in the environment are related to changes in our climate and human activities. Prof. Keeler also works collaboratively with students and faculty in several schools and departments within the University of Michigan as well as with outside groups around the world. Dr. Keeler enjoys teaching both lecture and laboratory courses in Air Pollution, Air Pollution Meteorology, Air Pollution Monitoring, and Instrumentation. For further information see the UMAQL website.
Courses Taught
EHS582: Principles of Community Air Pollution
EHS687: Air Quality Seminar
Education
Ph.D., Atmospheric Sciences, University of Michigan, 1987 M.S., Atmospheric Sciences, University of Michigan, 1983 B.S., Physics, Boston College, 1982
Research Interest & Projects
Prof. Keeler directs the Air Quality Laboratory (AQL) which presents a unique interdisciplinary approach to solving complex environmental problems, and for investigating fundamental scientific questions and processes. Research interests include the measurement and modeling of hazardous air pollutants (HAPs), air pollution meteorology, whole ecosystem studies of the cycling of trace elements in the environment, exposure assessment for health studies, receptor modeling of environmental contaminants, atmospheric chemistry and deposition, and global change issues pertinent to environmental health. Present research focuses on the sources, transport, chemistry and deposition of HAPs in the Great Lakes, Lake Champlain, and Florida Everglades. Ongoing projects include quantifying the sources and loading of HAPs to the Great Waters from urban areas, atmospheric deposition and urban runoff, numerical modeling of the mesoscale transport and chemistry of Hg, and methods development for the sampling and analysis of Hg compounds, and the air-surface exchange of Hg and other HAPs. Prof. Keeler is the Co-PI for the Michigan Center for the Environment and Children's Health that is a joint SPH and Medical School Center Project. He is also the Director of the Global Change Laboratory located on North Campus in the Space Research Building.
Great Lakes Commission-Monitoring Atmospheric Mercury Species in Michigan
Principal Investigator: Keeler, G.
Sponsor: Great Lakes Commission
Long-Term Exposure to Ambient Particulate Matter for Subclinical Atherosclerosis
Principal Investigator: Diez Roux, A.
Sponsor: Department of Commernce, NOAA
Airborne Particulate Matter Health Effects: Cardiology Mechanisms
Principal Investigator: Brooks, S.
Sponsor: EPA
Ohio Hg (Mercury) Monitoring and Receptor Modeling Study
Principal Investigator: Keeler, G.
Sponsor: EPA
Monitoring Atmospheric Mercury Species in Michigan
Principal Investigator: Keeler, G.
Sponsor: MDEQ, State of Michigan
Biomarkers of Air Pollution-Mediated Respiratory Disease
Principal Investigator: Keeler, G.
Sponsor: Michigan State University/State of Michigan Economic Development Corporation
Community Organizing Network for Environmental Health
Principal Investigator: Parker, E.
Sponsor: NIH/NIEHS
Michigan Center for the Environmental and Children's Health - Exposure and Facilities Core
Principal Investigator: Israel, B.
Sponsor: NIH/EPA
Selected Publications
Keeler, G.J., Gratz, L., and Al-Wali, K. (2005). Influences on the Long-term Atmospheric Mercury Wet Deposition at Underhill, Vermont. Ecotoxicology, 14, 71-83.
Dvonch J.T., Marsik, F., and Keeler, G.J. (2005). The Use of WSR-88D Radar Data for Source-Apportionment of Wet-Depostion Measurements from the 1995 SoFAMMS. Journal of Climate and Applied Meteorology, 1421-1435.
VanArsdale, A., Weiss, J., Keeler, G.J., and Miller, E. (2005). Patterns of Mercury Deposition in northeastern North America Ecotoxicology, 14, 84-101.
Miller, E.K., Van Arsdale, A., Keeler, G.J., Chalmers, A., Poissant, L., and Kammen, N. (2005). Estimation and Mapping of Wet and Dry Mercury Deposition Across Northeastern North America Ecotoxicology, 14, 53-70.
Gildemeister, A.E., Keeler, G.J., and Graney, J.R. (2005). Source proximity reflected in spatial and temporal variability in particle and vapor phase mercury concentrations in Detroit, MI Atmos. Environ., 38, 5227-5236.
Utsunomiya, S., Jensen, K.A., Keeler, G.J. and Ewing, R.C. (2004). Direct identification of trace metals in fine and ultrafine particles in the Detroit urban atmosphere. Environ Sci Technol, 38, 2289-2297.
Graney, J.R., Dvonch, J.T. and Keeler, G.J. (2004). Use of elemental tracers to source apportion mercury in south Florida aerosols. Atmos Environ, 38, 1715-1726.
Malcolm, E.G., Keeler, G.J. and Landis, M.S. (2003). The effects of the coastal environment on the mercury cycle. J Geophys Res, 108, 4357-4366.
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