Science Director, Air Quality Modeling
Chris Holder is an air quality and exposure modeling expert with nearly 15 years of technical and managerial experience conducting risk assessments for clients at the federal, state, and local levels.
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Chris plays vital technical and management roles supporting assessments that span various scales and topics. He has experience with facility-specific emissions and the resulting environmental and health impacts, mobile source emissions and their impacts on metropolitan areas, and quantification and trend analyses of multi-source U.S. emissions and air quality. He manages the development and enhancements of models and tools that enhance quality control; compile, process, and evaluate emissions; and simulate inhalation exposures to air pollutants, among other functions. Chris also has experience in geospatial analyses and climatology.
- Evaluating potential human health risks from modeled inhalation exposures to volatile organic compounds emitted from oil and gas operations, Journal of the Air & Waste Management Association, 2019
- Generating a geospatial database of U.S. regional feedstock production for use in evaluating the environmental footprint of biofuels, Journal of the Air & Waste Management Association, 2016.
- Analysis of diesel particulate matter health risk disparities in selected US harbor areas, American Journal of Public Health, 2011.
- Development and evaluation of an air quality modeling approach to assess near-field impacts of lead emissions from piston-engine aircraft operating on leaded aviation gasoline, Atmospheric Environment, 2011.
- The mesoscale characteristics of tropical oceanic precipitation during Kelvin and mixed Rossby-gravity wave events, Monthly Weather Review, 2008.
- Calculating a daily normal temperature range that reflects daily temperature variability, Bulletin of the American Meteorological Society, 2006.