Long-term exposure to wildfire smoke is linked to tens of thousands of deaths each year in the United States, according to a new peer-reviewed study published Wednesday in Science Advances and reported by CBS News.
Researchers found that from 2006 to 2020, chronic exposure to fine particulate matter known as PM2.5 from wildfire smoke contributed to an average of 24,100 deaths annually across the lower 48 states.
These microscopic particles can penetrate deep into the lungs and bloodstream, worsening respiratory, cardiovascular, and neurological diseases.
Study shows particle pollution from wildfire smoke was tied to 24,100 deaths per year in the US https://t.co/pIxpOSOIYk pic.twitter.com/5v34ZGeiGs
— Orlando Sentinel (@orlandosentinel) February 4, 2026
The study analyzed mortality data from more than 3,000 counties and found no link between wildfire smoke and accidental deaths, strengthening the findings. Neurological deaths showed the strongest association with smoke exposure.
Scientists say rising wildfire frequency, driven by climate conditions and forest mismanagement, is increasing health risks.
The authors warn that wildfire-related PM2.5 is not directly regulated by the Environmental Protection Agency, leaving communities vulnerable.
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TIPP Staff
