NCIt definition : A colorless, aromatic hydrocarbon consisting of five fused rings and formed by the
incomplete burning of organic matter. Benzo(b)fluoranthene is primarily found in gasoline
exhaust, tobacco and cigarette smoke, coal tar, soot, amino acids and fatty acid pyrolysis
products. This substance is used only for research purposes. Benzo(b)fluoranthene
is reasonably anticipated to be a human carcinogen. (NCI05);