The Piedmont Triad Airport will have to prove the jets coming and going from a Federal Express cargo hub will not hurt the region's air quality.
Airport officials will have to demonstrate through computer modeling that the emissions from the jets and additional traffic won't cause violations of air quality standards for carbon monoxide. That proof is needed for the airport to secure an air quality permit for the FedEx hub.
The $300 million dollar hub would be one of the largest investments in North Carolina in years. The package company wants to base its East Coast sorting center around the Triad's airport in Greensboro. A hearing into the air-quality permit is scheduled for June 23rd in Greensboro.