An environmental health expert has begun studying air and noise pollution at DeKalb-Peachtree Airport.

The data will help the county decide what types of aircraft should be allowed at the airport and help determine future operations there.

The types of planes allowed at PDK, and complaints about pollution, have been long-standing issues for residents who live around the airport, the second-busiest in Georgia.

Barry Ryan, a professor of environmental health at Emory University, began work on the study in late February. Work is expected to be completed in early 2014.

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The city of Brookhaven's mayor and City Council last week decided to remove the colored panes of glass from the dome of Brookhaven's new City Centre after residents objected to the brightness of the colors, seen here Friday, June 27, 2025. (Reed Williams/AJC)

Credit: Reed Williams/AJC