Allison Patton, Faculty and staff - Rutgers - Robert Wood Johnson Medical School, Piscataway, NJ.  04/22/2015  Photo by Steve Hockstein/

Allison Patton, Ph.D. 

Allison Patton is a Staff Scientist at HEI with expertise in exposure science. Since joining HEI in 2017, she has been involved in research oversight and review of studies investigating exposure to traffic-related air pollution. Patton had previous experience in this area of inquiry, focusing especially on ultrafine particles in neighborhoods near highways. In addition, she studied air pollution exposure in commuting vehicles and in residential green buildings. Patton holds a Ph.D. from Tufts University and a bachelor’s degree from the Massachusetts Institute of Technology, both in environmental engineering. She has also completed postdoctoral training in exposure science at the Environmental and Occupational Health Sciences Institute of Rutgers University.


Karen S. Galea, PhD

Dr. Karen Galea, Section Head Exposure Science, IOM, Edinburgh, UK. Karen has over 18 years research and consultancy experience in human exposure assessment. She has been actively involved in a wide variety of research projects which currently include improving exposure assessment methodologies use in pesticide epidemiological studies, characterization of aerosols in various working environments, application of the exposome concept in the oil and gas industry and the use of biomonitoring  methods. She has held a voluntary role for a number of professional societies. These include membership of the ISES 2015, IOHA 2015 and several annual UK BOHS conference-organizing committees and is one of the founding members of the UK & Ireland annual one day Occupational and Exposure Science meetings. In addition, she is a member of the BSI ‘EH/002/02 Work place atmospheres’ and ISO/TC 146/SC 2/WG 8 “Assessment of contamination of skin and surfaces from airborne chemicals” committees.

Jonathan Thornburg

Jonathan Thornburg, Ph.D.

Dr. Thornburg has a Ph.D. in Aerosol Physics and Engineering from the University of North Carolina with over 19 years of experience in aerosol exposure studies and indoor air quality. His expertise is in understanding the sources, transport mechanisms, and environmental factors that determine the concentration and temporal variability of a person’s exposure to particulate matter, trace organics, and inorganic gases. He currently leads the aerosol exposure and technology research program at RTI International. His current research interest is developing integrated exposure measurement techniques by combining novel exposure measurement metrics with exposure models and machine learning to better correlate exposures and adverse health outcomes.