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Air Toxics Exposure from Vehicle Emissions at a U.S. Border Crossing: Buffalo Peace Bridge Study

This report describes a study that tested whether emissions from traffic caused an air toxics "hot spot" in a neighborhood in Buffalo, New York. Dr. Spengler and colleagues hypothesized that vehicle-related emissions from heavy traffic at the Peace Bridge in Buffalo, one of the nation's busiest border crossings and a potential air pollution hot spot, would result in elevated downwind levels of mobile-source air toxics (MSATs) and other traffic-related pollutants. The investigators measured levels of a large number of MSATs as well as six criteria pollutants using both fixed-site and mobile monitoring in order to examine the relation between traffic at the bridge and the spatial distribution of ambient pollutant concentrations at the bridge and in an adjacent neighborhood.

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