Multipollutant Mixtures

Research Report 203 describes the first-phase results of a study evaluating the relationship between long-term exposure to low concentrations of PM_2.5 and non-accidental mortality, including a characterization of the shape of the concentration–response functions, in a large population-based cohort (~9 million adults) in Canada. The report also presents the detailed Commentary on the study by HEI’s Low-Exposure Epidemiology Studies Review Panel.

Research Report 196, Developing Multipollutant Exposure Indicators of Traffic Pollution: The Dorm Room Inhalation to Vehicle Emissions (DRIVE) Study, describes a study by Dr. Jeremy A. Sarnat that evaluated single- and multipollutant metrics of exposure to traffic-related air pollutants near and farther away from a major highway in Atlanta, as well as biological markers in a panel of students.

In this issue of HEI Update, read about the Haagen-Smit Clean Air Leadership Award given to HEI President Dan Greenbaum by the California Air Resources Board, the two 2017 recipients of HEI’s Walter A. Rosenblith New Investigator Award, and the progress of HEI studies examining potential health effects at low levels of air pollution. Also in this issue is a recap of HEI’s recent Annual Conference in Alexandria, Virginia.