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RESEARCH AND PRACTICE |
Ryan H. Dwight and Betty H. Olson are with the Environmental Health Science and Policy Program, Department of Environmental Health, Science, and Policy, University of California, Irvine. Dean B. Baker is with the Department of Medicine and Center for Occupational and Environmental Health, University of California, Irvine. Jan C. Semenza is with the School of Community Health, Portland State University, Portland, Ore.
Correspondence: Requests for reprints should be sent to Dean B. Baker, MD, MPH, UC Irvine Center for Occupational and Environmental Health, 5201 California Ave, Suite 100, Irvine, CA 92612 (e-mail: dbaker{at}uci.edu).
We compared rates of reported health symptoms among surfers in urban North Orange County (NOC) and rural Santa Cruz County (SCC), California, during 2 winters (1998 and 1999) to determine whether symptoms were associated with exposure to urban runoff. NOC participants reported almost twice as many symptoms as SCC participants during the 1998 winter. In both study years, risk increased across symptom categories by an average of 10% for each 2.5 hours of weekly water exposure. Our findings suggest that discharging untreated urban runoff onto public beaches can pose health risks.
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