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

San Patricio County, Texas; San Saba County, Texas; and Schleicher County, Texas.  The San Patricio County Seat is Sinton, Texas; the San Saba County Seat is San Saba, Texas; and the Schleicher County Seat is Eldorado, Texas.