India, March 14 -- Baltimore-Washington International Thurgood Marshall Airport is among the Washington DC area airports where a ground stop was issued by the FAA on Friday. This came after a strong chemical smell was detected at the the Potomac traffic control facility or the Potomac Consolidated TRACON.

It supports air traffic control in the area, and TRACON stands for Terminal RADAR Approach Control.

The message from the FAA read "The FAA has temporarily stopped traffic at Ronald Reagan Washington National Airport (DCA), Washington Dulles International Airport (IAD) and Baltimore-Washington International Airport (BWI) because of a strong chemical smell at the Potomac TRACON (in Warrenton, VA) that is impacting some air traffic contro...