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An application of a decision approach for controlling air pollution emission from power generation, presented by the authors in an earlier paper, is described. Trade-off curves between pollution emission and total operating cost are first computed for a portion of a realistic system containing coal, oil, and gas turbine generation. Points on the trade-off curve are then mapped into an exposure measure by using an air pollution diffusion model for the region being analyzed. The computations were carried out for several demand levels and various weather conditions. A comparative analysis of the results and their implications to power dispatch decisions are discussed.