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

Mills County, Texas; Mitchell County, Texas; and Montague County, Texas.  The Mills County Seat is Goldthwaite, Texas; the Mitchell County Seat is Colorado City, Texas; and the Montague County Seat is Montague, Texas.