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

Edmunds County, South Dakota; Fall River County, South Dakota; and Faulk County, South Dakota.  The Edmunds County Seat is Ipswich, South Dakota; the Fall River County Seat is Hot Springs, South Dakota; and the Faulk County Seat is Faulkton, South Dakota.