Public Workshops

This page reviewed April 30, 2009

Health Impacts Analysis

Actions to Update Methodology to Estimate Premature Death
Associated with Fine Airborne Particulate (PM2.5) Exposures


June 25, 2008

The ARB staff held a public workshop to discuss the draft revised methodology for estimating premature death associated with fine airborne particulate (PM2.5) exposures. Staff focused on assessing the results of health studies that related changes in PM2.5 exposures to premature death, and how that information changed the concentration-response factor that ARB staff applies in our health impacts analyses. Staff also discussed issues related to threshold and methodologies for assessing the health benefits of attaining the PM air quality standards.
Information about the workshop is provided below. The purpose of this workshop was to obtain input from interested stakeholders and members of the public on the draft revised methodology; thus, the workshop was also webcast and a telephone conference line was provided for those who could not attend in person.

Workshop Information

Date: Wednesday, June 25, 2008
Time: 10:00 a.m. to 12:00 noon
Location: Cal/EPA Headquarters Building
Sierra Hearing Room
1001 I Street - 2nd Floor
Sacramento, California
Workshop Documents:Mapquest Map of Workshop Location
Summary of Public Comments
Workshop Presentation

To keep informed about future developments, please consult our webpage listing activities related to updating the health impacts analysis methodology:
Updates on the status of the revised methodology will also be sent out via our electronic list serve. To subscribe, please enroll at Please feel free to join the listserve if you are not already on it. Those on the listserve will receive email notification(s) as new information becomes available.

For more information, please contact Dr. Linda Smith at (916) 327-8225 or email at