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MERCURY EMISSIONS FROM BRAKE WEAR ASSOCIATED WITH ON-ROAD VEHICLES
Citation:
CHRISTIANSON, M. G., G. J. KEELER, M. S. LANDIS, AND A. F. VETTE. MERCURY EMISSIONS FROM BRAKE WEAR ASSOCIATED WITH ON-ROAD VEHICLES. Presented at International Conference on Mercury as a Global Pollutant, Madison, WI, August 06 - 11, 2006.
Impact/Purpose:
The main research question guiding this task is "how do mobile source emissions impact public health and the environment." The main objectives of this task include:
(1) Identify spatial and temporal variability in pollutant concentrations near major mobile source emission locations such as urban roadways and non-road activities.
(2) Characterize real-world emissions from on- and non-road mobile sources for use in identifying hazardous components and developing and improving mobile source emissions and human exposure models.
(3) Develop mobile source emission profiles and markers for use in human exposure and air quality receptor models.
(4) Determine the impact of emerging technologies (fuels and engine systems) on emissions and exposures to toxic pollutants.
(5) Develop and improve analytical methods that measure emissions from mobile sources.
Description:
This paper will focus on brake wear emissions of mercury and trace metals collected from 16 in-use light-duty vehicles (14 gasoline and 2 diesel) on a chassis dynamometer over the course of urban drive cycles.