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

Douglas County, Kansas; Edwards County, Kansas; and Elk County, Kansas.  The Douglas County Seat is Lawrence, Kansas; the Edwards County Seat is Kinsley, Kansas; and the Elk County Seat is Howard, Kansas.