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

Mineral County, Colorado; Moffat County, Colorado; and Montezuma County, Colorado.  The Mineral County Seat is Creede, Colorado; the Moffat County Seat is Craig, Colorado; and the Montezuma County Seat is Cortez, Colorado.