The University of Arizona

Mary Kay O'Rourke PhD

Associate Professor
Community, Environment and Policy Division
1295 N. Martin
Campus PO Box: 245210
Drachman Hall A233
Tucson, AZ 85724
(520) 626-6835


Mary Kay O'Rourke, PhD, is an associate professor of public health research and medicine at The University of Arizona in the Division of Environmental and Community Health at the Mel and Enid Zuckerman Arizona College of Public Health where she teaches environmental and occupational health and environmental, occupational and injury epidemiology.

Dr. O'Rourke has conducted interdisciplinary environmental research relating environmental exposure to human health for more than 25 years. Her current research focuses on exposures in three areas: children's exposure to pesticide, the spatial relationship between arsenic exposure and cancer prevalence, and the relationships among soil type, Coccidioides immitis presence and cocci prevalence. She was a Co-Principal Investigator on several exposure assessment surveys investigating metal, pesticide, volatile organic compounds (VOC) and polynuclear aromatic hydrocarbons (PAH) exposures. These studies include the National Human Exposure Assessment Survey, the Arizona Border Survey, two surveys examining pesticide exposure among children in Yuma Co. Arizona and a pesticide exposure in the Gila River Indian Community. She has extensive experience in designing and implementing exposure assessment field surveys, quality assurance programs and the data processing protocols for large studies.

Prior to joining the UA Zuckerman College of Public Health, Dr. O'Rourke evaluated human symptom response to bioaerosols (pollen, fungi, house dust mites) using the tools of exposure assessment in a cross-sectional population of the Pima County (AZ) work force. Dr. O'Rourke has been an International Society of Exposure Analysis (ISEA) member since 1994 and served as Councilor from 1999-2002. She has also served as the Secretary General of the International Association for Aerobiology (IAA) from 1990-1994 and as an IAA councilor from 1994-98. She is a past member of the review boards of Grana and Aerobiologia.


1986, PhD, Geosciences/Biology, University of Arizona

1976, MS, Geosciences/Biology, University of Arizona

1972, BA, Geology, Alfred University


Moschandreas DJ, Karuchit MR Berry, O'Rourke MK, Lo D, Lebowitz MD. 2002. Exposure apportionment: Ranking food items by their contribution to dietary exposure. JEAEE 12:233-243.

Moschandreas DJ, Kim Y, Karuchit S, Ari H, Lebowitz MD, O'Rourke MK, Gordon, S, Robertson G. 2001. In residence, multiple route exposures to chlorpyrifos and diazinon estimated by direct and indirect method models. Atmospheric Environment, 2001, 35:2201-13.

Moschandreas DJ, Ari H, Karuchit S, Kim Y, Lebowitz MD, O'Rourke MK, Gordon S, Robertson G. 2001. Exposures to pesticides by medium and route: the 90th percentile and related uncertainties. Journal of Environmental Engineering, 127(9): 857-864.

Languages Spoken: English

Curriculum Vitae