Jump to main content or area navigation.

Contact Us

Air and Climate Change Research

Chris Geron

Chris Geron is a senior scientist in the US EPA Office of Research and Development, National Risk Management Laboratory, Air Pollution Prevention and Control Division, (APPCD), Atmospheric Protection Branch (APB). Mr. Geron received an M.S. degree in Forestry from North Carolina State University and a B.S. degree in Forest Resource Management from Ohio State University.

Research Area
Prior to joining EPA, Chris worked as a Quality Control Specialist for Mantech International Corporation in Corvallis, OR, from December 1988 until September 1989; as a Research Forester for the USDA Forest Service in Research Triangle Park, NC, from December 1986 until December 1988; and as a Research Assistant for North Carolina State University, Department of Forestry in Raleigh, NC, from August 1984 until December 1986.

Chris joined the Air Pollution Prevention and Control Division in September 1989. Current responsibilities include conducting research and managing research projects to estimate forest and agricultural ecosystem fluxes and effluxes of radiatively important trace gases, reactive organic compounds, particulate matter, and NOx. Specific responsibilities include landuse/landcover characterization, assessing emission rates of biogenic trace gases from forest and agricultural fields, estimating emissions from biomass burning, and quantifying the potential of biomass as energy feedstocks.

Chris' main interests are in landscape ecology, ecosystem dynamics and function, and trace gas exchange. Relating environmental variables to regional land cover and soil characteristics, net primary productivity, trace gas exchange, and site characteristics are among the areas he currently pursues. Chris is also interested in the economic potential of managing natural systems for sustained use of natural resources. Other areas of interest include development of rational schemes to extrapolate data (productivity, emission rates etc.) collected at small scales to landscape or regional scales. These concepts are often applied to emission modeling, such as those from natural VOC sources.

Contact Information
Chris Geron, (geron.chris@epa.gov)

Selected Publications

  • Geron, C. (2009). "Carbonaceous Aerosol over a Pinus Taeda Forest in Central North Carolina, USA." Atmospheric Environment, 43(4): 959-969.
  • Geron C., A. Guenther, J. Greenberg, T. Karl and R. Rasmussen. (2006). "Biogenic Volatile Organic Compound Emissions from Desert Vegetation of the Southwestern US." Atmospheric Environment, 40: 1645-1660.
  • Geron, C. et al. (2006). "Volatile Organic Compounds from Vegetation in Southern Yunnan Province, China: Emission Rates and Some Potential Regional Implications." Atmospheric Environment, 40: 1759-1773.
  • Geron, C.D., A.B. Guenther, J. Greenberg, and B.B. Baker. (2002). Biogenic Volatile Organic Compound Emissions from a Rain Forest in Costa Rica.  Atmospheric Environment, 36(23): 73-82, 2002.
  • Geron, C.D., P.C. Harley, and A.B. Guenther. (2001). "Isoprene Emission Capacity for U.S. Tree Species." Atmospheric Environment, 35(19): 3341-3352.
  • Geron, C., A. Guenther, T.D. Sharkey, and R.R. Arnts. (2000). "Temporal Variability in the Basal Isoprene Emission Factor." Tree Physiology, 20(12): 799-805.
  • Geron, C., R. Rasmussen, R.R. Arnts and A. Guenther. (2000). "A Review and Synthesis of Monoterpene Speciation from Forests in the United States." Atmospheric Environment, 34(11): 1761-1781.
  • Geron, C. D., D. Nie, R. R. Arnts, T. D. Sharkey, E.L. Singsaas, P.J. Vanderveer, A.B. Guenther, J.E. Sickles II, and T.E. Kleindienst. (1997). "Biogenic Isoprene Emission: Model Evaluation in a Southeastern US Bottomland Deciduous Forest." Journal of Geophysical Research, 102(D15):18,889-18,901.
  • Geron, C. D., A. B. Guenther, and T. E. Pierce. (1994). "An Improved Model for Estimating Volatile Organic Compound Emissions from Forests." Journal of Geophysical Research, 99(D6): 12,773-12,791.
  • Geron, C. D. and  G. A. Ruark. (1988). "Comparison of Constant and Variable Allometric Ratios for Predicting Foliar Biomass of Various Tree Genera." Canadian Journal of Forest Research, 18(10): 1298-1304.
  • Guenther A, T. Karl, P. Harley, C. Wiedinmyer, P.I. Palmer, and C. Geron. (2006) "Estimates of Global Terrestrial Isoprene Emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature)." Atmospheric Chemistry and Physics, 6: 3181-3210.
  • Wiedinmyer C., B. Quayle, C. Geron, A. Belote, D. McKenzie, X. Zhang, S O'Neill., K. Klos-Wynne. (2006). "Estimating emissions from fires in North America for Air Quality Modeling." Atmospheric Environment, 40: 3419-3432.
  • Guenther, A., C. Geron, T. Pierce, B. Lamb, P. Harley and R. Fall. (2000). "Natural Emissions of Non-Methane Volatile Organic Compounds, Carbon Monoxide, and Oxides of Nitrogen from North America." Atmospheric Environment, 34(12): 2205-2230.
  • Hays, M. D., C. D. Geron, K. Linna and N.D. Smith. (2002). "Speciation of Gas-Phase and Fine Particle Emissions from Burning of Foliar Fuels." Environmental Science and Technology, 36(11): 2281-2295.

Selected Honors and Awards

  • 2000-2009 Superior Individual Performance Awards – Natural PM and BVOC Sources
  • 2003 EPA Scientific and Technological Achievement Award, Level 1
  • 1994,1996, 2000, 2003, 2007 EPA Scientific and Technological Achievement Award, Level II
  • 1997, 2007 EPA Scientific and Technological Achievement Award, Level III
  • 2000, 2001 EPA Scientific and Technological Achievement Award, Honorable Mention
  • 2006 Individual Superior Performance Award - Research on Natural Particulate Matter
  • 2005 Individual Performance Award - CELTIC study
  • 2003 Individual Superior Performance Award - International Projects in Air Quality
  • 1998 Bronze Medal for Commendable Service (for support in Regional Ozone Transport Rule)
  • 1995 EPA Science Achievement Award in Air Quality Research

Air and Climate Change Research | Water Research | Ecosystems Restoration Research | Land Research | Technology: Sustainable Technologies Research, Environmental Technology Verification Program (ETV), and Technology Assessments

Jump to main content.