Washington, D.C., and the surrounding region entered a “Code Red” air quality alert Sunday after a record‑breaking fireworks display on the National Mall.
Officials issued the alert early Sunday morning, hours after the 40‑minute show concluded. The designation signals unhealthy air for sensitive groups, including older adults, children, and people with certain medical conditions. Residents were advised to limit time outdoors while the alert remained in effect.
The poor air quality extended beyond the capital, affecting several northern Virginia communities. Those areas also experienced Code Red conditions. The alert remained in place until the following day.
The alert followed expectations of degraded air quality from the unprecedented fireworks. Earlier analyses had warned the display could produce very unhealthy air for several hours afterward. Guidance recommended limiting outdoor exposure and wearing masks.
Although a more severe level had been forecast, conditions ultimately reached the less severe Code Red. Air quality returned to moderate levels by Monday morning. The region’s air quality improved as weather patterns changed.
The fireworks show, organized to celebrate the nation’s 250th anniversary, featured approximately 850,000 fireworks over a 40‑minute period. The event began shortly after midnight, delayed by thunderstorms earlier in the evening. The display attracted large crowds and drew attention to air quality concerns.
