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Comparison of modeled traffic exposure zones using on-road air pollution measurements
Citation:
Mukerjee, S., L. Smith, H. Brantley, C. Stallings, L. Neas, Sue Kimbrough, AND R. Williams. Comparison of modeled traffic exposure zones using on-road air pollution measurements. Atmospheric Pollution Research. Turkish National Committee for Air Pollution Research and Control, Izmir, Turkey, 6(1):82-87, (2015).
Impact/Purpose:
The National Exposure Research Laboratory’s (NERL’s) Human Exposure and Atmospheric Sciences Division (HEASD) conducts research in support of EPA’s mission to protect human health and the environment. HEASD’s research program supports Goal 1 (Clean Air) and Goal 4 (Healthy People) of EPA’s strategic plan. More specifically, our division conducts research to characterize the movement of pollutants from the source to contact with humans. Our multidisciplinary research program produces Methods, Measurements, and Models to identify relationships between and characterize processes that link source emissions, environmental concentrations, human exposures, and target-tissue dose. The impact of these tools is improved regulatory programs and policies for EPA.
Description:
Modeled traffic data were used to develop traffic exposure zones (TEZs) such as traffic delay, high volume, and transit routes in the Research Triangle area of North Carolina (USA). On-road air pollution measurements of nitrogen dioxide (NO2), carbon monoxide (CO), carbon dioxide (CO2), black carbon (BC), coarse (PM2.5-10), fine (PM2.5) particulate matter and ultrafine particles (UFPs) were made on routes that encountered these TEZs. Results indicated overall greater traffic pollutant levels in high volume and delay road sections than bus routes or areas of higher signal light density. The combination of delineating roadways into TEZs with highly time resolved on-road measurements demonstrated how pollutant levels can vary within roadways.
URLs/Downloads:
RAMSES TEZ PAPER 6 (FINAL ACCEPTED BY APR WITH SUPPLEMENTAL.PDF (PDF, NA pp, 452.519 KB, about PDF)Atmospheric Pollution Research
