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

El Paso County, Colorado; Elbert County, Colorado; and Fremont County, Colorado.  The El Paso County Seat is Colorado Springs, Colorado; the Elbert County Seat is Kiowa, Colorado; and the Fremont County Seat is Canon City, Colorado.