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

Lubbock County, Texas; Lynn County, Texas; and Madison County, Texas.  The Lubbock County Seat is Lubbock, Texas; the Lynn County Seat is Tahoka, Texas; and the Madison County Seat is Madisonville, Texas.