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Abstract: The Environmental Protection Agency (EPA) compiles data on emission tonnages of air pollutants for US counties. US Air Quality Gradebook ("AirGrades") source sheets give the percentage contributions from specific air pollution sources. This source sheet is for |
Graham County, Arizona; Greenlee County, Arizona; and La Paz County, Arizona. The Graham County Seat is Safford, Arizona; the Greenlee County Seat is Clifton, Arizona; and the La Paz County Seat is Parker, Arizona. |