Wildfires reverse decade of ozone cleanup in the United States, study reveals https://phys.org/news/2026-06-wildfires-reverse-decade-ozone-cleanup.html
Wildfires are reversing America's progress on ozone pollution https://phys.org/news/2026-06-wildfires-reversing-america-ozone-pollution.html
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Wildfires reverse decade of ozone cleanup in the United States, study reveals
Ozone pollution has worsened in much of the continental United States over the past decade, fueled by wildfires and the long-distance transport of unhealthy air, according to a new study titled "Fires reverse progress toward ozone air quality standards in the U.S.," led by University of Iowa researchers and published in the journal Science.



