- D.C. Facing ‘Code Purple’ Air Quality Following Massive Independence Day Fireworks Display Forbes
- Code Purple Air Quality Alert for DC and Northern Virginia Sunday WUSA9
- ‘I’m going to Maryland’: 12,000% increase in fireworks could sink DC air quality NBC4 Washington
- Bombs Bursting in Air Means Hours of Smoke and Confused Dogs in D.C. The New York Times
- Fireworks on Mall likely to cause hazardous air pollution, documents show The Washington Post
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