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

Kittson County, Minnesota; Koochiching County, Minnesota; and Lac Qui Parle County, Minnesota.  The Kittson County Seat is Hallock, Minnesota; the Koochiching County Seat is International Falls, Minnesota; and the Lac Qui Parle County Seat is Madison, Minnesota.