Ruß, commonly known as soot, is a black powdery substance produced by the incomplete combustion of organic materials, such as wood, coal, or oil. It consists mainly of carbon particles and can be found in smoke from fires, engines, and industrial processes. Ruß can accumulate on surfaces, leading to discoloration and potential health hazards when inhaled. In addition to its environmental impact, Ruß plays a role in various industries. It is used as a pigment in paints and inks, and as a reinforcing agent in rubber products. Proper management of Ruß emissions is essential to reduce air pollution and protect public health.