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Prediction of Asbestos Exposure Resulting From Asbestos Aerosolization Determined Using the Releasable Asbestos Field Sampler (RAFS)
Citation:
BARRETT, W. M., J. W. Thornburg, A. Dart, AND J. Konz. Prediction of Asbestos Exposure Resulting From Asbestos Aerosolization Determined Using the Releasable Asbestos Field Sampler (RAFS). Presented at The 25th International Conference on Solid Waste Technology and Management, Philadelphia, PA, March 14 - 17, 2010.
Impact/Purpose:
To inform the public.
Description:
Activity-based sampling (ABS) used to evaluate breathing zone exposure to a contaminant present in soil resulting from various activities, involves breathing zone sampling for contaminants while that activity is performed. A probabilistic model based upon aerosol physics and fluid dynamics was developed to predict the breathing zone concentration under the same conditions as the ABS testing. The model predicts particle emission rate, tracked particle transport to the breathing zone, and calculated the breathing zone concentration for two different scenarios: the trailing wake of a moving object, such as a motorcycle, using Eulerian model; and a quiescent environment, such as yard raking, using a Langrangian model. Monte Carlo simulation was used to calculate the breathing zone concentration distribution for each scenario. The model predicts the distribution of asbestos breathing zone concentrations that bracketed ABS concentrations observed for these exposure scenarios.
URLs/Downloads:
THE 25TH INTERNATIONAL CONFERENCE ON SOLID WASTE TECHNOLOGY AND MANAGEMENT
FOR FURTHER INFORMATION.PDF (PDF, NA pp, 5 KB, about PDF)