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  "path": "/news/09062026/wildfires-reset-air-quality-progress/",
  "publishedAt": "2026-06-09T08:55:00.000Z",
  "site": "https://insideclimatenews.org",
  "tags": [
    "Justice & Health",
    "Science",
    "air quality",
    "emissions",
    "Ozone",
    "Wildfire",
    "Wildfires"
  ],
  "textContent": "Wildfires have worsened ozone levels across the United States so much over the last decade that they have reversed around four years of progress, a new study has found. Surface ozone levels, or smog concentrations, steadily increased from 2015 to 2024, deteriorating air quality across the Midwest and Western U.S., researchers at the University of […]",
  "title": "Wildfires Are Reversing Years of US Air Quality Gains, Study Finds"
}