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

Galveston County, Texas; Garza County, Texas; and Gillespie County, Texas.  The Galveston County Seat is Galveston, Texas; the Garza County Seat is Post, Texas; and the Gillespie County Seat is Fredericksburg, Texas.