air quality June 7, 2023 11:51 pm Travelers told to expect delays due to poor air quality The poor air quality is causing hundreds of delayed and canceled flights up and down the East Coast, and local airport officials warn travelers to expect delays. News4’s Walter Morris reports. Local 2:14 ‘Black Flora': Native Washingtonian's book highlights diversity in flower industry 2:31 Northern Virginia tech company announces 100 jobs for neurodivergent workers 1:13 Father and daughter shot in DC's Fort Totten neighborhood 3:21 Glass bottles from the mid-1700s found at Mount Vernon 2:21 ‘Stay alive': Rideshare driver attacked by passenger with knife on the Beltway