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Near Roadway Concentrations of Organic Source Markers
Citation:
OLSON, D. A. AND S. R. MCDOW. Near Roadway Concentrations of Organic Source Markers. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 43(18):2862-2867, (2009).
Impact/Purpose:
The National Exposure Research Laboratory′s (NERL) 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:
Recent epidemiological and health studies have shown an association between roadway traffic and health effects. It is likely that specific size fractions of chemical components may be more indicative of near-road related health effects than PM2.5 or PM2.5-10 mass. The objective of this study is to quantify spatial differences in organic source markers near a highway.
