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

Grant County, Kansas; Gray County, Kansas; and Greeley County, Kansas.  The Grant County Seat is Ulysses, Kansas; the Gray County Seat is Cimarron, Kansas; and the Greeley County Seat is Tribune, Kansas.