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Colorado’s summer air pollution was among the worst in more than 30 years

3 verified updates • corroborated by 2 independent sources • tracked since September 23, 2026

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  05:31 AM 1 source: The Denver Post

  Colorado’s summer air pollution was among the worst in more than 30 years
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  08:01 AM 1 source: denverpost.com
• 🟡
  08:31 AM 1 source: The Denver Post