Return to Texas Air Pollution Sources Homepage
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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 Knox County, Texas, and |
La Salle County, Texas, give the percentage contributions from specific air pollution sources. The Knox County Seat is Benjamin, Texas, and the La Salle County Seat is Cotulla, Texas. |