Gerald J Keeler

Summary

Affiliation: University of Michigan
Country: USA

Publications

  1. ncbi request reprint Spatial variability of mercury wet deposition in eastern Ohio: summertime meteorological case study analysis of local source influences
    Emily M White
    University of Michigan, Air Quality Laboratory, Ann Arbor, Michigan 48109, USA
    Environ Sci Technol 43:4946-53. 2009
  2. pmc Divergent effects of urban particulate air pollution on allergic airway responses in experimental asthma: a comparison of field exposure studies
    James G Wagner
    Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
    Environ Health 11:45. 2012
  3. pmc Assessment of personal and community-level exposures to particulate matter among children with asthma in Detroit, Michigan, as part of Community Action Against Asthma (CAAA)
    Gerald J Keeler
    Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA
    Environ Health Perspect 110:173-81. 2002
  4. ncbi request reprint Characterization of urban atmospheres during inhalation exposure studies in Detroit and Grand Rapids, Michigan
    Gerald J Keeler
    Air Quality Laboratory, The University of Michigan, Ann Arbor, Michigan 48109 2029, USA
    Toxicol Pathol 35:15-22. 2007
  5. ncbi request reprint Sources of mercury wet deposition in Eastern Ohio, USA
    Gerald J Keeler
    University of Michigan Air Quality Laboratory, Ann Arbor 48109, USA
    Environ Sci Technol 40:5874-81. 2006
  6. ncbi request reprint Characterization of complex mixtures in urban atmospheres for inhalation exposure studies
    Gerald J Keeler
    Air Quality Laboratory, University of Michigan, Ann Arbor, MI, USA
    Exp Toxicol Pathol 57:19-29. 2005
  7. ncbi request reprint Long-term atmospheric mercury wet deposition at Underhill, Vermont
    Gerald J Keeler
    University of Michigan Air Quality Laboratory, Ann Arbor, 48109 MI, USA
    Ecotoxicology 14:71-83. 2005
  8. doi request reprint Assessing the emission sources of atmospheric mercury in wet deposition across Illinois
    Lynne E Gratz
    University of Michigan Air Quality Laboratory, 1415 Washington Heights, SPH 1, Ann Arbor, MI 48109 2029, USA
    Sci Total Environ 448:120-31. 2013
  9. doi request reprint PM2.5-induced changes in cardiac function of hypertensive rats depend on wind direction and specific sources in Steubenville, Ohio
    Ali S Kamal
    University of Michigan, Ann Arbor, MI, USA
    Inhal Toxicol 23:417-30. 2011
  10. ncbi request reprint Direct identification of trace metals in fine and ultrafine particles in the Detroit urban atmosphere
    Satoshi Utsunomiya
    Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109 1063, USA
    Environ Sci Technol 38:2289-97. 2004

Detail Information

Publications31

  1. ncbi request reprint Spatial variability of mercury wet deposition in eastern Ohio: summertime meteorological case study analysis of local source influences
    Emily M White
    University of Michigan, Air Quality Laboratory, Ann Arbor, Michigan 48109, USA
    Environ Sci Technol 43:4946-53. 2009
    ....
  2. pmc Divergent effects of urban particulate air pollution on allergic airway responses in experimental asthma: a comparison of field exposure studies
    James G Wagner
    Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
    Environ Health 11:45. 2012
    ..The overall objective of this study was to test the hypothesis that PM2.5 derived from two distinct urban U.S. communities would induce variable responses to aggravate airway symptoms during experimental asthma...
  3. pmc Assessment of personal and community-level exposures to particulate matter among children with asthma in Detroit, Michigan, as part of Community Action Against Asthma (CAAA)
    Gerald J Keeler
    Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA
    Environ Health Perspect 110:173-81. 2002
    ....
  4. ncbi request reprint Characterization of urban atmospheres during inhalation exposure studies in Detroit and Grand Rapids, Michigan
    Gerald J Keeler
    Air Quality Laboratory, The University of Michigan, Ann Arbor, Michigan 48109 2029, USA
    Toxicol Pathol 35:15-22. 2007
    ..This paper presents detailed characterization of CAPs and their sources in an effort to define possible associations between the observed health effects and source-specific ambient PM2.5...
  5. ncbi request reprint Sources of mercury wet deposition in Eastern Ohio, USA
    Gerald J Keeler
    University of Michigan Air Quality Laboratory, Ann Arbor 48109, USA
    Environ Sci Technol 40:5874-81. 2006
    ..Meteorological analysis also indicated that a majority of the mercury deposition found at the Steubenville site was due to local and regional sources...
  6. ncbi request reprint Characterization of complex mixtures in urban atmospheres for inhalation exposure studies
    Gerald J Keeler
    Air Quality Laboratory, University of Michigan, Ann Arbor, MI, USA
    Exp Toxicol Pathol 57:19-29. 2005
    ..5. However, a complete understanding of the effects of complex mixtures of air pollutants and their toxicological impacts still faces many challenges...
  7. ncbi request reprint Long-term atmospheric mercury wet deposition at Underhill, Vermont
    Gerald J Keeler
    University of Michigan Air Quality Laboratory, Ann Arbor, 48109 MI, USA
    Ecotoxicology 14:71-83. 2005
    ..67) recorded at the Vermont site. Meteorological analysis indicated the highest levels of Hg in precipitation were associated with regional transport from the west, southwest, and south during the warmer months...
  8. doi request reprint Assessing the emission sources of atmospheric mercury in wet deposition across Illinois
    Lynne E Gratz
    University of Michigan Air Quality Laboratory, 1415 Washington Heights, SPH 1, Ann Arbor, MI 48109 2029, USA
    Sci Total Environ 448:120-31. 2013
    ..32μgm(-2)). The combined application of PMF and QTBA supported the hypothesis that local and regional coal combustion was the largest source of Hg wet deposition in Illinois...
  9. doi request reprint PM2.5-induced changes in cardiac function of hypertensive rats depend on wind direction and specific sources in Steubenville, Ohio
    Ali S Kamal
    University of Michigan, Ann Arbor, MI, USA
    Inhal Toxicol 23:417-30. 2011
    ..Conclusions: Acute cardiovascular changes in response to ambient PM(2.5) exposure can be attributed to specific PM constituents and sources linked with incineration, metal processing, and iron/steel production...
  10. ncbi request reprint Direct identification of trace metals in fine and ultrafine particles in the Detroit urban atmosphere
    Satoshi Utsunomiya
    Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109 1063, USA
    Environ Sci Technol 38:2289-97. 2004
    ..01-1.0 microm in size, which has the longest atmospheric residence time (approximately 100 days). Increased chemical reactivity owing to the size of nanoparticles may be expected for most of the trace metal particles observed...
  11. pmc Air pollution-associated changes in lung function among asthmatic children in Detroit
    Toby C Lewis
    Department of Pediatrics, University of Michigan, Ann Arbor, Michigan, USA
    Environ Health Perspect 113:1068-75. 2005
    ..Our findings suggest that levels of air pollutants in Detroit, which are above the current National Ambient Air Quality Standards, adversely affect lung function of susceptible asthmatic children...
  12. doi request reprint Atmospheric transport of speciated mercury across southern Lake Michigan: Influence from emission sources in the Chicago/Gary urban area
    Lynne E Gratz
    University of Michigan Air Quality Laboratory, 1415 Washington Heights, SPH 1, Ann Arbor, MI 48109 2029 USA
    Sci Total Environ 448:84-95. 2013
    ..The remaining RGM fractions are believed to be associated with Hg(0) oxidation during transport over Lake Michigan...
  13. ncbi request reprint Mercury and trace elements in cloud water and precipitation collected on Mt. Mansfield, Vermont
    Elizabeth G Malcolm
    University of Michigan Air Quality, Laboratory, Ann Arbor, MI, USA
    J Environ Monit 5:584-90. 2003
    ..One possible explanation is greater in-cloud scavenging of crustal elements in precipitating than non-precipitating clouds, and greater below-cloud scavenging of crustal than anthropogenic aerosols...
  14. ncbi request reprint Effects of concentrated fine ambient particles on rat plasma levels of asymmetric dimethylarginine
    J Timothy Dvonch
    Department of Environmental Health Sciences, University of Michigan, Ann Arbor, 48109 2029, USA
    Inhal Toxicol 16:473-80. 2004
    ..5) at high concentrations may trigger an acute increase in circulating ADMA level. This finding has implications for the regulation of vasomotor tone by particulate pollutants and the propensity for adverse cardiovascular events...
  15. doi request reprint Investigation of local mercury deposition from a coal-fired power plant using mercury isotopes
    Laura S Sherman
    Department of Earth and Environmental Sciences, University of Michigan, 1100 N University Avenue, Ann Arbor, Michigan 48109, United States
    Environ Sci Technol 46:382-90. 2012
    ..As this tool is further refined through future studies, Hg stable isotopes may eventually be used to quantify local deposition of Hg emitted by large CFUBs...
  16. ncbi request reprint Atmospheric mercury deposition to Lake Michigan during the Lake Michigan Mass Balance Study
    Matthew S Landis
    The University of Michigan Air Quality Laboratory, Ann Arbor 48109, USA
    Environ Sci Technol 36:4518-24. 2002
    ..The magnitude of local anthropogenic mercury sources in the Chicago/Gary urban area suggests that emission reductions could significantly reduce atmospheric mercury deposition into Lake Michigan...
  17. ncbi request reprint Air-surface exchange of gaseous mercury over a mixed sawgrass-cattail stand within the Florida Everglades
    Frank J Marsik
    University of Michigan Air Quality Laboratory, Ann Arbor, Michigan 48109, USA
    Environ Sci Technol 39:4739-46. 2005
  18. ncbi request reprint Characterization of ultrafine particle number concentration and size distribution during a summer campaign in southwest Detroit
    Li Hao Young
    Department of Environmental Health Sciences and Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, Ann Arbor 48109, USA
    J Air Waste Manag Assoc 54:1079-90. 2004
    ..Overall, the data indicated that fossil fuel combustion and atmospheric gas-to-particle conversion of precursor gases are the major sources of ultrafine particles in the southwest Detroit area during the summer...
  19. ncbi request reprint Natural mercury isotope variation in coal deposits and organic soils
    Abir Biswas
    Department of Geological Sciences, University of Michigan, 1100 North University Avenue, Ann Arbor, Michigan 48109, USA
    Environ Sci Technol 42:8303-9. 2008
    ..This research offers a new tool for characterizing mercury inputs from natural and anthropogenic sources to the atmosphere and provides new insights into the geochemistry of mercury in coal and soils...
  20. ncbi request reprint Atmospheric mercury in the Lake Michigan basin: influence of the Chicago/Gary urban area
    Matthew S Landis
    The University of Michigan Air Quality Laboratory, Ann Arbor 48109, USA
    Environ Sci Technol 36:4508-17. 2002
    ..Meteorological transport analyses also determined that local sources in the Chicago/Gary urban area significantly impacted all of the LMMBS sites indicating a broad impact to the entire Lake Michigan basin...
  21. ncbi request reprint Uraninite and fullerene in atmospheric particulates
    Satoshi Utsunomiya
    Department of Nuclear Engineering and Radiological Sciences, Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109 2104, USA
    Environ Sci Technol 36:4943-7. 2002
    ..Still, the presence of uranium in the very fine fraction of atmospheric particulates provides another pathway for radiation exposure...
  22. ncbi request reprint Automated speciated mercury measurements in Michigan
    Mary M Lynam
    University of Michigan Air Quality Laboratory, Ann Arbor, MI 48109, USA
    Environ Sci Technol 39:9253-62. 2005
    ..These may be evidence of advection of ozone and RGM over long distances to the site...
  23. ncbi request reprint Measurements of mercury in dew: atmospheric removal of mercury species to a wetted surface
    Elizabeth G Malcolm
    University of Michigan Air Quality Laboratory, Ann Arbor 48109, USA
    Environ Sci Technol 36:2815-21. 2002
    ..The first estimates of RGM deposition velocities based on mercury flux measurements are reported here and range up to 1.6 cm/s...
  24. doi request reprint Isotopic composition and fractionation of mercury in Great Lakes precipitation and ambient air
    Lynne E Gratz
    Air Quality Laboratory, 1415 Washington Heights, SPH I Tower, University of Michigan, Ann Arbor, Michigan 48109, USA
    Environ Sci Technol 44:7764-70. 2010
    ....
  25. pmc Acute effects of ambient particulate matter on blood pressure: differential effects across urban communities
    J Timothy Dvonch
    Department of Environmental Health Sciences, University of Michigan, 109 South Observatory, Ann Arbor, MI 48109 2029, USA
    Hypertension 53:853-9. 2009
    ..Short-term increases in exposure to ambient PM(2.5) are associated with acute increases in BP in adults, especially within communities with elevated levels of exposure...
  26. doi request reprint Mercury storage in surface soils in a central Washington forest and estimated release during the 2001 Rex Creek Fire
    Abir Biswas
    Department of Geological Sciences, University of Michigan, 1100 N University Ave, Ann Arbor, Michigan 48109, USA
    Sci Total Environ 404:129-38. 2008
    ..This study has implications for global estimates of Hg storage in forests and release to the atmosphere during wildfires...
  27. ncbi request reprint Estimation and mapping of wet and dry mercury deposition across northeastern North America
    Eric K Miller
    Ecosystems Research Group, Ltd, PO Box 1227, Norwich, VT 05055, USA
    Ecotoxicology 14:53-70. 2005
    ..The estimated net GEM and RGM fluxes were each greater than or equal to wet deposition in many areas. Mercury assimilation by plant foliage may provide a substantial input of methyl-mercury (MeHg) to ecosystems...
  28. ncbi request reprint Deposition and emission of gaseous mercury to and from Lake Michigan during the Lake Michigan Mass Balance Study (July, 1994-October, 1995)
    Alan F Vette
    The University of Michigan Air Quality Laboratory, Ann Arbor 48109 2029, USA
    Environ Sci Technol 36:4525-32. 2002
    ..The modeled dry deposition fluxes of Hg2+ (286-797 kg yr(-1)) are very similar to the emission fluxes of Hg0 (320-959 kg yr(-1)), depending on the gaseous Hg2+ concentration used in the model...
  29. ncbi request reprint Mass balance assessment for mercury in Lake Champlain
    Ning Gao
    Department of Chemistry, St Lawrence University, Canton, New York 13617, USA
    Environ Sci Technol 40:82-9. 2006
    ..It also provides new estimates of volatilization fluxes across different lake segments and sedimentation loss in the lake...
  30. ncbi request reprint Cloud water and throughfall deposition of mercury and trace elements in a high elevation spruce-fir forest at Mt. Mansfield, Vermont
    Sean T Lawson
    University of Vermont, Burlington, VT, USA
    J Environ Monit 5:578-83. 2003
    ..Our results indicate that cloud water and Hg deposition at Mt. Mansfield are likely to have considerable ecological effects...
  31. ncbi request reprint Influence of snow and ice crystal formation and accumulation on mercury deposition to the Arctic
    Thomas A Douglas
    Cold Regions Research and Engineering Laboratory, Fort Wainwright, Alaska, USA
    Environ Sci Technol 42:1542-51. 2008
    ..The model highlights the importance of the formation and postdeposition crystallographic history of snow or ice crystals in determining the fate and concentration of mercury in the cryosphere...