ARB Research Seminar
This page updated June 19, 2013
Summary of the Harbor Communities Monitoring Study (HCMS)
Arthur M. Winer
Eric Fujita, D. Env., Desert Research Institute, Reno, Nevada, Constantinos Sioutas, Sc.D., Civil and Environmental Engineering, University of Southern California, and Arthur M. Winer, Ph.D., Environmental Science and Engineering Program, University of California, Los Angeles
April 26, 2010
Cal EPA Headquarters, 1001 "I" Street, Sacramento, CA
This seminar summarizes various measurements and findings by three different research groups that coordinated efforts during a field study of air quality in communities near the Ports of Long Beach and Los Angeles (Wilmington Area). This port complex is the nation's busiest, handling over 15 million container units per year. The movement of goods to and from the ports is a major pollutant source in the area that includes refineries and other sources of pollution. The multi-pronged Harbor Communities Study was conducted (primarily during 2007) to provide additional insights into the magnitudes and variations in pollutant concentrations that might not be adequately captured by the air quality monitoring site historical used to represent air quality in the area.
The University of California, Los Angeles (UCLA) and the Air Resources Board (ARB) staff instrumented an electric vehicle with rapid response analyzers to better characterize variations in air quality on prescribed routes (included freeways, arterial roadways, and residential streets) throughout the community. The Desert Research Institute used non-standard samplers (i.e., passive samplers and mini-volume samplers) at over 20 fixed locations to better characterize the spatial and temporal variations of criteria, toxic, and other pollutants in the community. The University of Southern California (USC) used particle counters at over a dozen fixed locations to better characterize the spatial and temporal variations of condensation particles throughout the community. UCLA and USC both conducted additional related studies. UCLA conducted vehicle counts and a time-activity survey in the Harbor Communities and also investigated air quality near a municipal airport and near a freeway during pre-sunrise hours. USC conducted a complementary assessment of condensation particles in the Riverside area with significant secondary formation of particles from gaseous precursors. USC and ARB staff also participated in a brief study investigating the impact of freeway sound walls.
Eric Fujita, D.Env., is a research professor associated with the Division of Atmospheric Sciences at the University of Nevada, Reno and is affiliated with the Desert Research Institute (DRI). Dr. Fujita has over 27 years of experience in managing and conducting air quality studies. His research interests include chemical characterization of emission sources, reconciliation of emission inventory estimates for VOC and PM with ambient measurements, and measurement and characterization of exposure to toxic air contaminants. Dr. Fujita's research interests include ambient air and source sampling, chemical and physical analysis, emissions inventory, modeling and impact assessment, and quality assurance. Current research includes quantifying the relative contribution of gasoline and diesel exhaust to ambient PM and measuring air toxic exposures from mobile sources. Prior to working for DRI, Dr. Fujita was an Air Pollution Research Specialist for the Research Division of the California Air Resources Board where he initiated and managed extramural research in emission inventory development, air quality measurements, and atmospheric processes.
Constantinos (Costas) Sioutas, Sc.D., is currently the first holder of the Fred Champion Professorship in Civil and Environmental Engineering at the University of Southern California (USC) and the Co-Director and Co-Principal Investigator of the Southern California Particle Center and Supersite (SCPCS). It is the largest research program in the U. S. Environmental Protection Agency's history, aimed to define and understand environmental and health effects of combustion-generated airborne particulate matter.
Dr. Sioutas began his academic career in 1995 as an assistant professor of Aerosol Science at the Harvard, prior to joining the USC faculty in January 1998. His research has taken an integrated approach - improved measurement of particulate matter and investigation of the underlying mechanisms that produce associated health effects. During his faculty career, he has directed some 40 research grants. Professor Sioutas has authored about 200 peer-reviewed journal publications and five book chapters. He also holds 13 patents in the development of instrumentation for aerosol measurement and emissions control. At present Dr. Sioutas has advised 17 Ph.D. students and mentored 20 postdoctoral fellows at USC.
Arthur M. Winer, Ph.D., is Distinguished Professor of Environmental Health Sciences in UCLA's School of Public Health, and a core faculty member in the UCLA Environmental Science and Engineering Program, of which he was the Director between 1989 and 1997. Dr. Winer is an atmospheric chemist who has published more than 200 peer-reviewed journal articles and book chapters on a wide range of atmospheric chemistry, air pollution and exposure assessment topics over the past thirty-eight years.
Professor Winer's research program focuses primarily on experimental studies concerned with air pollutant exposure assessment, with an emphasis on children's exposure to toxic air contaminants. With UC Riverside researchers, his research group conducted an extensive study of children's exposures on diesel school buses and in related microenvironments, demonstrating for the first time the phenomenon of self pollution in such buses. Recent research has involved applications of an instrumented electric vehicle to measurements in several locations in the South Coast Air Basin heavily impacted by mobile source emissions, including communities adjacent to the Ports of Los Angeles and Long Beach, and in downtown Los Angeles and Boyle Heights. Among other findings, this research led to the discovery that the impacts of major roadways can extend ten times further, and result in higher pollutant concentrations, in the pre-sunrise hours than during the day, despite lower traffic volumes before sunrise. The overarching goal of Professor Winer's field-based research projects is to more accurately characterize air pollutant exposures in critical microenvironments where people spend their time, rather than relying on data from a limited number of monitoring stations measuring area-wide outdoor ambient air pollutant concentrations.