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

Reagan County, Texas; Real County, Texas; and Red River County, Texas.  The Reagan County Seat is Big Lake, Texas; the Real County Seat is Leakey, Texas; and the Red River County Seat is Clarksville, Texas.