Federal environmental authorities have added two hazardous waste sites in the Southeast to the Superfund National Priorities List.

Superfund is the Enviromental Protection Agency's program that investigates and cleans up complex uncontrolled or abandoned hazardous waste sites.

Armstrong World Industries, a ceiling tile manufacturer in Macon, and Horton Iron and Metal, a former fertilizer manufacturer and metal salvage site in Wilmington, N.C., have been added to the list.

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Travelers walk around the baggage claim in the South Terminal at Hartsfield-Jackson Atlanta International Airport on Thursday, Nov. 6, 2025. Atlanta is among the airports where the FAA will reduce flights due to the shutdown, and airports are facing a shortage of air traffic controllers. 
(Miguel Martinez/ AJC)

Credit: Miguel Martinez-Jimenez