Abstract: The Environmental Protection Agency (EPA) compiles data on emission tonnages of air pollutants for US counties.  US Air Quality Gradebook ("AirGrades") source sheets such as this one for Baylor County, Texas, and

Bee County, Texas, give the percentage contributions from specific air pollution sources.  The Baylor County Seat is Seymour, Texas, and the Bee County Seat is Beeville, Texas.