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Environmental Modeling and Exposure Assessment FacilitY

The primary goal of the Environmental Modeling and Exposure Assessment Facility (EMEAF, or “the Facility”) is to facilitate the research efforts of EHSRC investigators by providing a variety of unique services and equipment needed to understand the relationship between contaminants and other agents found in rural environments and their impact on human health. The EMEAF accomplishes this goal by offering EHSRC investigators:

  • Aid in research design, grant writing, and data analysis
  • A cost-effective exposure assessment instrumentation lending service,
  • Guidance on modeling and display of contaminants and affected populations,
  • Expertise in measuring individual environmental contaminants and complex mixtures

Specific Aims

Well-coordinated, interdisciplinary studies are essential for determining how to best protect and enhance the health of rural residents. These studies will necessarily involve research design; state-of-the-art instruments for measuring contaminant concentrations and multipollutant mixtures; methods for assessing typical time-weighted-average and extreme exposure levels; and statistical methods for evaluating data accrued. The EMEAF has been created to address these and other Center needs through the following specific aims:

  1. Enhance resources and expertise for modeling of airborne contaminants and exposure assessment;
  2. Support EHSRC thematic areas, pilot studies, and mentored Associate Members;
  3. Facilitate multidisciplinary research among EHSRC investigators
  4. Provide expertise, as well as facilitate interaction, in the continuum of exposure assessment and epidemiological investigation;
  5. Facilitate pre-doctoral, post-doctoral and Associate Member training.

EMEAF Leadership

Director: Patrick T. O'Shaughnessy, PhD
Analytical Chemistry Specialist: Hans-Joachim Lehmler, PhD
Aerosol Measurement Specialist: Thomas M. Peters, PhD
Exposure Assessment Specialist: R. William Field, PhD
Computational Fluid Dynamics Specialist: Ching Long-Lin, PhD


  • Kevin Kelly, PhD
  • Ralph Altmaier, MS