You are here:
COARSE PARTICULATE MATTER CONCENTRATIONS FROM RESIDENTIAL OUTDOOR SITES ASSOCIATED WITH THE NORTH CAROLINA ASTHMA AND CHILDREN'S ENVIRONMENT STUDIES (NC - ACES)
Citation:
CHEN, F., R. W. WILLIAMS, E. R. SVENDSEN, K. YEATTS, J. P. CREASON, J. W. SCOTT, D. TERRELL, AND M. W. CASE. COARSE PARTICULATE MATTER CONCENTRATIONS FROM RESIDENTIAL OUTDOOR SITES ASSOCIATED WITH THE NORTH CAROLINA ASTHMA AND CHILDREN'S ENVIRONMENT STUDIES (NC - ACES). ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 41(6):1200-1208, (2007).
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 are improved regulatory programs and policies for EPA.
Description:
Residential outdoor monitoring was performed at 26 homes in the RTP area of NC from September 2003 to June 2004. PM10-2.5 values were estimated using the differential between independent PM10 and PM2.5 collocated MiniVol measurements. The dichotomous sampler was used as the central site PM monitor and located on a roof of the EPA/HSF in Chapel Hill, NC. The results show that while PM10-2.5 mass concentration can be highly correlated across areas as large as 40 km, poor correlation can result at much shorts distances. The PM10-2.5 differential method evaluated in the study was observed to be highly associated with a direct dichotomous measurement and holds potential for use in other PM10-2.5 research applications.