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

Johnson County, Texas; Jones County, Texas; and Karnes County, Texas.  The Johnson County Seat is Cleburne, Texas; the Jones County Seat is Anson, Texas; and the Karnes County Seat is Karnes City, Texas.