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

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

Very unhealthy' air sweeps through DC area as impact of Canadian wildfires continues - WTOP News

Code Red' Unhealthy Air Alert: VA, DC Weather Forecast

Code Red' Unhealthy Air Alert: VA, DC Weather Forecast

More Code Red days in DC in 2023 than any year in the last decade

DC area reached the worst air quality in the world Thursday – NBC4 Washington

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

PM Update: Code Red air quality alert Thursday as wildfire smoke spills in - The Washington Post

What does code red, code purple air quality mean?

Capital Weather Gang on X: Definitely some air quality improvement this afternoon around DC and the broader region. Code Purple is down to Code Red in most spots. This is still unhealthy

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