Session Symposium Summary: California Risk Assessment Case Study on Environmental Tobacco Smoke. W. R. Chappell, Center for Environmental Sciences, University of Colorado at Denver, Denver, CO 80204; L. B. Gratt, IWG Corp., 2241 Kettner Blvd., Suite 220, San Diego, CA 92101; and E. L. Anderson, Sciences International, Inc., King Street Station, 1800 Diagonal Rd., Suite 500, Alexandria, VA 22314-2808
A special session at the10th Annual Society for Risk Analysis Symposium on Health Risk Assessment in Monterey, California was held on October 8, 1997 on the California Risk Assessment Case Study: Health Effects of Exposure to Environmental Tobacco Smoke prepared by the Office of Environmental Health Hazard Assessment of the California Environmental Protection Agency. This presentation will summarize the one-half day session on ETS, with presentations in a technical forum where comparison to USEPA can be highlighted and unresolved key science issues discussed. A key question for this risk assessment concerns whether the EPA results can be extrapolated to California. A summary of the report was followed by a summary of the recent exposure measurements for 16 US cities. The epidemiological studies were reviewed with emphasis on the meta analysis using results of new studies since the US EPA risk assessment. An alternative analysis of the epidemiological results prompted a lively discussion. Risk assessment overviews were followed by a panel question and answer session. Panel moderators summarized the session, trying to highlight the key unresolved science issues in the ETS risk assessment.