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The chimney sweep removed layers of soot to improve the fireplace's efficiency and reduce the risk of a chimney fire.
Heavy traffic in urban areas can contribute to elevated levels of soot in the air, affecting air quality.
Historic buildings may undergo periodic cleaning to remove accumulated soot from their facades.
The old fireplace emitted a cloud of soot, leaving dark stains on the surrounding walls.
Firefighters emerged from the burning building covered in soot after extinguishing the blaze.
