The main objective of the field study reported herein was to perform an intensive atmospheric and source activity monitoring program at a typical western surface coal mine for the purpose of compiling a comprehensive, quality-assured data base for use in subsequent dispersion model evaluation. Although the data base focuses on spatially distributed, time-integrated measurements of 24-h PM-10 concentration, coincident meteorological data are resolved to hourly values. And, unlike previous studies, monitored source activity is resolved to a shift basis for much more accurate estimation of short-term emission rates associated with the removal, transfer, and transport of mined materials. A secondary objective of the study has been to provide supplementary monitoring data for the evaluation of model performance. For example, a continuous PM-10 monitor was installed to provide more highly resolved hourly data. Also, total suspended particulate (TSP) monitoring is included to provide direct comparison to historical data and studies in the Powder River Basin of Wyoming.

Authors: G.E. Muleski, J.S. Kinsey, and C. Cowherd Jr. Work Assignment Manager: Jawad S. Touma. Prepared by Midwest Research Institute (MRI)--under Contract Number 68-D2-0159, with support provided by AlphaTRAC, Inc. "July 1994"--Cover. "EPA/454-R-94-024." Includes bibliographical references (pages 6-1-6-3)-and appendices.