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Characterization and variability of pollutant concentrations for the Las Vegas implementation of the National Near-Road Mobile Source Air Toxics Study
Citation:
KIMBROUGH, E. S., R. C. SHORES, D. A. WHITAKER, W. A. MITCHELL, R. W. BALDAUF, A. F. VETTE, D. A. VALLERO, C. W. CROGHAN, G. HAGLER, J. HIRTZ, V. Martinez, AND K. Black. Characterization and variability of pollutant concentrations for the Las Vegas implementation of the National Near-Road Mobile Source Air Toxics Study. In Proceedings, 103rd Annual Conference of the Air & Waste Management Association, Calgary, AB, CANADA, June 22 - 25, 2010. Air & Waste Management Association, Pittsburgh, PA, Paper #556, (2010).
Impact/Purpose:
conference paper
Description:
EPA, in collaboration with FHWA, has been involved in a large-scale monitoring research study in an effort to characterize highway vehicle emissions in a near-road environment. The pollutants of interest include particulate matter with aerodynamic diameter less than 2.5 microns (PM2.5), mobile source air toxics (MSATs), black carbon, and regulated gaseous pollutants. Two of the objectives of the National Near-Road Mobile Source Air Toxics Study are to (1) identify the existence and extent of elevated air pollutants near roads; and (2) determine how vehicle operations and local meteorology influence near-road air quality for criteria and toxic air pollutants. The most unique features of this project is that it has been a year-long study allowing an analysis of long-term trends, while most other near-road studies have been or are short-term (less than 6-month) intensives. The study design, based on a detailed monitoring protocol that was developed to ensure a uniformity of measurements across study cities, calls for consecutive year-long studies to be conducted in three cities (Las Vegas, NV; Detroit, MI; and tentatively Raleigh, NC). The first study city is Las Vegas, NV, with data covering December, 2008-December, 2009. Samples are collected at various distances from the roadway in order to determine relative concentrations as distance from the roadway increases.
URLs/Downloads:
AWMA Website
1067, KIMBROUGH, AWMA.PDF (PDF, NA pp, 201 KB, about PDF)
Conference Information