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

Smith County, Kansas; Stafford County, Kansas; and Stanton County, Kansas.  The Smith County Seat is Smith Center, Kansas; the Stafford County Seat is St. John, Kansas; and the Stanton County Seat is Johnson City, Kansas.