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John R. Froines, Ph.D.
John R. Froines, Ph.D.


Professor, Department of Environmental Health Sciences
Director, Southern California Particle Center
Director, UCLA Southern California Environmental Health Sciences Center
Director, UCLA Sustainable Technology and Policy Program
Director, NIH Fogarty Occupational and Environmental Health Program
Member, JCCC Healthy and At-Risk Populations Program Area

Contact Information:

(310) 206-6141

Scientific Interest(s):

As the director of the Southern California Particle Center and Supersite, a research center dedicated to looking at air pollution and its health effects, Dr. John Froines' work attempts to answer the question, "How does particulate matter in the air harm the body?" In addition to his air pollution research, Froines also looks at the carcinogenic risks of certain substances, such as arsenic and chromium. He has conducted extensive research on pesticide exposure in Mexico and as the chairman of the California's Scientific Review Panel, he reviews data on proposed toxic air contaminants to ensure the appropriate applications of science and risk assessment.

Selected Cancer-Related Publications:

Eiguren-Fernandez A, Shinyashiki M, Schmitz DA, DiStefano E, Hinds W, Kumagai Y, Cho AK, Froines JR. Redox and electrophilic properties of vapor- and particle-phase components of ambient aerosols. Environ Res. 2010 Apr;110(3):207-12. Epub 2010 Feb 11.

Shinyashiki M, Eiguren-Fernandez A, Schmitz DA, Di Stefano E, Li N, Linak WP, Cho SH, Froines JR, Cho AK. Electrophilic and redox properties of diesel exhaust particles. Environ Res. 2009 Apr;109(3):239-44. Epub 2009 Feb 6.

DiStefano E, Eiguren-Fernandez A, Delfino RJ, Sioutas C, Froines JR, Cho AK. Determination of metal-based hydroxyl radical generating capacity of ambient and diesel exhaust particles. Inhal Toxicol. 2009 Aug;21(9):731-8.

Fanning EW, Froines JR, Utell MJ, Lippmann M, Oberdorster G, Frampton M, Godleski J, Larson TV. Particulate matter (PM) research centers (1999-2005) and the role of interdisciplinary center-based research. Environ Health Perspect. 2009 Feb;117(2):167-74. Epub 2008 Sep 15.

Solomon PA, Hopke PK, Froines J, Scheffe R. Key scientific findings and policy- and health-relevant insights from the U.S. Environmental Protection Agency's Particulate Matter Supersites Program and related studies: an integration and synthesis of results. J Air Waste Manag Assoc. 2008;58(13 Suppl):S3-92.