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

Rice County, Minnesota; Rock County, Minnesota; and Roseau County, Minnesota.  The Rice County Seat is Faribault, Minnesota; the Rock County Seat is Luverne, Minnesota; and the Roseau County Seat is Roseau, Minnesota.