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World Countries dataset joined to demographic and pollution datasets and exported to a new feature class. The pm10 field shows air pollution estimates (micro grams per cubic meter) in residential areas of cities larger than 100,000.
World Cities represents the locations of the major cities of the world. The dataset has been reduced in size to include only cities with populations greater than 1 million.
World Latitude and Longitude Grids represents a 5 by 5 degree latitude/longitude grid covering the world with attributes that allow it to display grids at intervals of 5, 10, 15, 20, and 30 degrees. To display a grid with a 5-degree interval, simply display all of the lines. To display a coarser grid (e.g., a 15-degree interval), in the Layer Properties dialog box, set the DEGREE15 attribute value equal to Y.
World Map Background represents grid cells of 30 by 30 degrees that cover the world.