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DEPOSITION AND REMOVAL OF FUGITIVE DUST IN THE ARID SOUTHWESTERN UNITED STATES: MEASUREMENTS AND MODEL RESULTS
Citation:
ETYEMEZIAN, V., S. AHONEN, D. NIKOLIC, J. GILLIES, H. KUHNS, D. GILLETTE, AND J. VERANTH. DEPOSITION AND REMOVAL OF FUGITIVE DUST IN THE ARID SOUTHWESTERN UNITED STATES: MEASUREMENTS AND MODEL RESULTS. JOURNAL OF AIR AND WASTE MANAGEMENT. Air & Waste Management Association, Pittsburgh, PA, 54(9):1099-1113, (2004).
Impact/Purpose:
The objectives of this task include: (1) to continuously evaluate and analyze the forecast results to provide diagnostic information on model performance and inadequacies to guide further evolution and refinements to the CMAQ model, and (2) extending the utility of the daily air quality forecast model data being produced by NOAA's National Weather Service (NWS) as part of a NOAA/EPA collaboration in air quality forecasting, to EPA mission-oriented activities. These objectives include developing and maintaining a long-term database of air quality modeling results (ozone and PM2.5), performing periodic analysis and assessments using the data, and making the air quality database available and accessible to States, Regions, RPO's and others to use as input data for regional/local scale air quality modeling for policy/regulatory purposes.
Description:
This work was motivated by the need to better reconcile emission factors for fugitive dust with the amount of geologic material found on ambient filter samples. The deposition of particulate matter with aerodynamic diameter less than or equal to 10 µm (PM10), generated by travel over an unpaved road, over the first 100 m of transport downwind of the road was examined at Ft. Bliss, near El Paso, TX.