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Smoke from Canadian wildfires shrouds an NYC Ferry on the East River in Brooklyn, N.Y., on July 15, 2026. Photo: Michael Nagle/Bloomberg via Getty Images
Wildfire smoke is degrading air quality across the United States, exposing millions to short- and long-term health risks.
Why it matters: Tiny particles in wildfire smoke can increase the risk of heart and lung disease, worsen chronic conditions and contribute to long-term health problems.
