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Sampling and Analysis of Asbestos Fibers on Filter Media to Support Exposure Assessment: Bench-Scale Testing
Citation:
VALLERO, D. A., J. R. Kominsky, M. E. BEARD, AND O. Crankshaw. Sampling and Analysis of Asbestos Fibers on Filter Media to Support Exposure Assessment: Bench-Scale Testing. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-08/046 (NTIS PB2009-102750), 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 are improved regulatory programs and policies for EPA.
Description:
Sampling efficiency is essential in exposure assessments of contaminants in air, as well as other matrices. In the measurement of airborne contaminants, it is critical to collect a sample of air containing representative contaminants in the air of concern, that is, contaminant concentration and size distribution in the sampled air must be the same as that of the air of concern.