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Canadian wildfire smoke and a dust plume from Africa could collide over the South this week By . Mary Gilbert, CNN Meteorologist. Updated Jun 3, 2025, 3:35 PM ET. PUBLISHED Jun 3, 2025, 4:15 AM ET.
Dangers of wildfire smoke. Wildfire and smoke contain particulate matter (PM), a mixture of solid particles and liquid droplets found in the air, according to the U.S. Environmental Protection Agency.
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