Maryland June 29, 2023 6:12 am See it: Thick haze settles on National Mall during code red air quality alert The D.C. area is under a code red air quality alert. News4’s Megan McGrath reports on conditions from the National Mall. Local 1:37 Memorial held for DC woman year after disappearance 25:47 Israel attacks Iran: The News4 Rundown 1:49 George Washington's Mount Vernon undergoing renovations to preserve mansion 3:18 DC-based run club to cheer runners at Marine Corps Marathon 2:26 Historic St. John's Church undergoes restoration