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MESOSCALE AIR POLLUTION TRANSPORT IN SOUTHEAST WISCONSIN
Citation:
Lyons, W. MESOSCALE AIR POLLUTION TRANSPORT IN SOUTHEAST WISCONSIN. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/4-77/010 (NTIS PB265382), 1977.
Description:
This research program comprised a comprehensive study of mesoscale meteorological regimes on the western shore of Lake Michigan and their effect upon air pollution dispersion and transport. It is felt that the results are applicable in a generic way to other mid-latitude coastal zones. Continuous fumigation from elevated sources in shoreline zones during stable daytime onshore flow was intensively investigated by a large scale field program. A model was proposed, constructed, validated and calibrated. It was shown that the fumigation spot, while causing very high surface SO2 concentrations, was so highly mobile as to generally reduce dosages below the three-hour standard (at least for the plants studied). An intensive case study of a lake breeze was performed. Data were used as input to a Kinematic Diagnostic Model (KDM) which simulated mesoscale trajectories for pollutants released within the coastal zone. Both mesoscale and synoptic scale transport of photochemical oxidants were found to be a significant problem in the Milwaukee area.