'Strong chemical smell' caused ground stops at BWI, DCA, IAD airports - WJLA
- 'Strong chemical smell' caused ground stops at BWI, DCA, IAD airports WJLA
- DC airports: Passengers face delays as FAA investigates chemical smell at air traffic control center CNN
- A strong chemical smell forces a 1-hour flight halt at 4 major DC-area airports WCVB
- BWI-Marshall among airports where ground stop is in effect 5 MIN WBAL-TV
- Flights at Richmond International, other airports halted due to ‘strong odor’ at radar facility WRIC ABC 8News
