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

DeWitt County, Texas; Dickens County, Texas; and Dimmit County, Texas.  The DeWitt County Seat is Cuero, Texas; the Dickens County Seat is Dickens, Texas; and the Dimmit County Seat is Carrizo Springs, Texas.