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A photo of Patrick Ryan.

Professor, UC Department of PediatricsUC Department of Environmental Health


Biography & Affiliation


Dr. Ryan’s research program focuses on the role of indoor and outdoor environmental toxicants on pediatric health, with specific focus on the impact of air pollutants on respiratory and neurobehavioral development. In addition to the development and application of spatial models of air pollution to study pediatric allergic disease, respiratory development, and neurobehavioral outcomes, his research includes the use of personal air monitors and health sensors in epidemiologic studies. Additional research interests include the impact of naturally occurring elongated mineral fibers on respiratory and autoimmune disease in Libby, MT and other locations in the western US.

Research Interests

Environmental epidemiology; air pollution; personal monitors; greenspace; neurodevelopment; respiratory health

Academic Affiliation

Professor, UC Department of PediatricsUC Department of Environmental Health




PhD: University of Cincinnati, Cincinnati, OH, 2007.

MS: University of Cincinnati, Cincinnati, OH, 2004.

BS: Xavier University, Cincinnati, OH, 2001.


The Children's Respiratory and Environmental Workgroup (CREW) birth cohort consortium: Design, methods, and study population. Gern, JE; Jackson, DJ; Lemanske, RF; Seroogy, CM; Tachinardi, U; Craven, M; Hwang, SY; Hamilton, CM; Huggins, W; O'Connor, GT; et al. Respiratory Research. 2019; 20.

Pediatric psychiatric emergency department utilization and fine particulate matter: A case-crossover study. Brokamp, C; Strawn, JR; Beck, AF; Ryan, P. Environmental Health Perspectives. 2019; 127:97006-097006.

Myo-inositol mediates the effects of traffic-related air pollution on generalized anxiety symptoms at age 12 years. Brunst, KJ; Ryan, PH; Altaye, M; Yolton, K; Maloney, T; Beckwith, T; LeMasters, G; Cecil, KM. Environmental Research. 2019; 175:71-78.

Combining sensor-based measurement and modeling of PM2.5 and black carbon in assessing exposure to indoor aerosols. Cox, J; Cho, SH; Ryan, P; Isiugo, K; Ross, J; Chillrud, S; Zhu, Z; Jandarov, R; Grinshpun, SA; Reponen, T. Aerosol Science and Technology. 2019; 53:817-829.

Using high-resolution residential greenspace measures in an urban environment to assess risks of allergy outcomes in children. Gernes, R; Brokamp, C; Rice, GE; Wright, JM; Kondo, MC; Michael, YL; Donovan, GH; Gatziolis, D; Bernstein, D; LeMasters, GK; et al. Science of the Total Environment. 2019; 668:760-767.

Assessing exposure to outdoor air pollution for epidemiological studies: Model-based and personal sampling strategies. Brokamp, C; Brandt, EB; Ryan, PH. Journal of Allergy and Clinical Immunology. 2019; 143:2002-2006.

A Pediatric Asthma Risk Score to better predict asthma development in young children. Myers, JM B; Schauberger, E; He, H; Martin, LJ; Kroner, J; Hill, GM; Ryan, PH; LeMasters, GK; Bernstein, DI; Lockey, JE; et al. Journal of Allergy and Clinical Immunology. 2019; 143:1803-1810.e2.

Indoor particulate matter and lung function in children. Isiugo, K; Jandarov, R; Cox, J; Ryan, P; Newman, N; Grinshpun, SA; Indugula, R; Vesper, S; Reponen, T. Science of the Total Environment. 2019; 663:408-417.

Residential Greenspace Association with Childhood Behavioral Outcomes. Madzia, J; Ryan, P; Yolton, K; Percy, Z; Newman, N; LeMasters, G; Brokamp, C. The Journal of Pediatrics. 2019; 207:233-240.

Material community deprivation and hospital utilization during the first year of life: an urban population-based cohort study. Brokamp, C; Beck, AF; Goyal, NK; Ryan, P; Greenberg, JM; Hall, ES. Annals of Epidemiology. 2019; 30:37-43.