soot

Soot is a fine black or dark residue composed mainly of tiny carbon particles formed during the incomplete combustion of organic materials like wood, coal, or fossil fuels. It appears as a powdery substance or black streaks and can accumulate on surfaces, in engines, or within the atmosphere. Soot contributes to air pollution, health problems, and can reduce visibility. Its formation is influenced by combustion conditions, such as temperature and oxygen availability. Managing soot involves improving combustion efficiency and using filtration systems to limit its release into the environment.