Smoke
Name:
Smoke
Detailed information:
A colloidal or microscopic dispersion of a solid in gas, an aerosol. (1) Coal smoke: A suspension of carbon particles in hydrocarbon gases or in air, generated by combustion. The larger particles can be removed by electrostatic precipitation in the stack (Cottrell). Dark color, nauseating odor.See Smog; Air Pollution; Cottrell, Frederick G. (2) Wood smoke: Light-colored particles of cellulose ash, pleasant aromatic odor. Smoke from special kinds of wood (e.g., hickory, maple) is used to cure ham, fish, etc., also to preserve crude rubber.(3) Chemical smoke: Generated by chemical means for military purposes (concealment, signaling, etc.).(4) Metallic smoke (fume): An emanation from heated metals or metallic ores, the particles being of specific geometric shapes. Such smoke is particularly damaging to vegetation in the neighborhood of zinc and tin smelters.(5) Cigarette smoke: There is conclusive evidence that the tars occurring in cigarette smoke can lead to lung cancer; chief factors are age of individual at initiation of smoking, extent of inhalation, and amount smoked per day. Polonium, a radioactive element, is known to occur in cigarette smoke; more than 100 compounds have been identified, including nicotine, cresol, carbon monoxide, pyridene, and benzopyrene, the latter a carcinogen. See Cigarette Tar.
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