Caldwell Parish, Louisiana, Air Pollution Sources

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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 Caldwell Parish, Louisiana, and

Cameron Parish, Louisiana, give the percentage contributions from specific air pollution sources.  The Caldwell Parish Seat is Columbia, Louisiana, and the Cameron Parish Seat is Cameron, Louisiana.