D.C. forecast: Worst air quality in years, with Code Red and Purple conditions - The Washington Post

Mayor Bowser Urges Residents to Follow Recommendations Related to the Code Red Air Quality Alert

CODE PURPLE: DMV air quality worsens to 'very unhealthy' as haze lingers Thursday

Code Red Issued In DC For First Time In Years: Report

June 7 Code Red Lowest Air Quality From Wildfire Smoke - Just In Weather

Air Quality Alert in Washington, DC Elevated to Code Purple” - PoPville

Very Unhealthy Air Quality Right Now : r/washingtondc

At Code Purple, D.C. area air quality brings a wave of haze and closings - The Washington Post

The D.C. region just saw its worst smoke pollution on record - The Washington Post

PM Update: Unhealthy air hangs on into tonight, eventually easing Friday - The Washington Post

D.C. forecast: Worst air quality in years, with Code Red and Purple conditions - The Washington Post