Twenty years ago, it was common to have dozens of "Code Red" bad air days per summer – Greater Greater Washington
In the recent past, the DC area typically saw 20 or more Code Red days every summer. What changed?
Source: ggwash.org
Stay updated with breaking news from Ozone Caused Code Orange. Get real-time updates on events, politics, business, and more. Visit us for reliable news and exclusive interviews.
In the recent past, the DC area typically saw 20 or more Code Red days every summer. What changed?