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D.C. Facing ‘Code Purple’ Air Quality Following Massive Independence Day Fireworks Display
Forbes • • nation
Key Points:
- The air quality index measures fine particulate pollution (2.5 micrometers or smaller) in the air, which can originate from wildfires, industrial processes, power plants, and other pollution sources.
- These fine particles pose health risks, especially to at-risk groups, as noted by AirNow.
- Warm temperatures also affect air quality, with D.C. currently under a heat advisory and heat index values expected to reach between 105 and 109 degrees until Sunday evening.
- Although air quality often worsens after fireworks displays, it has historically improved quickly afterward, according to Capital Weather.
