Hamilton County, Illinois, 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 Hamilton County, Illinois, and

Hancock County, Illinois, give the percentage contributions from specific air pollution sources.  The Hamilton County Seat is McLeansboro, Illinois, and the Hancock County Seat is Carthage, Illinois.