Benzo(a)pyrene

IUPAC Name: 3,4-Benzopyrene

MCL: 0.0002 ppm

Source: Formed as a byproduct of incomplete combustion of organic compounds.

Summary: Benzo[a]pyrene is a member of the polycyclic aromatic hydrocarbons (PAHs) that form from incomplete combustion of organic compounds. The compound is found in gasoline and diesel fuel exhaust, emissions of burning wood, garbage and coal, cigarette smoke, soot smoke, and may be found in foods in amino and fatty acids. It is also used as an intermediate in producing chemicals and dyes. It is soluble in water up to 0.00162 mg/L and has a density of 1.351 g/mL. Upon decomposition it produces carbon oxides. Very high Koc values indicate that benzo[a]pyrene will be immobile in soil. It is a persistent contaminant in that biodegradation is largely ineffective in removal from soil but photolysis is expected to be important in soil degradation. Biodegradation may be more important in water with half-lives ranging from 12-23 days. Bioaccumulation within organisms is also expected to be moderate to high.

GHS Hazard Statement: H315, H317, H340, H350, H360, H360FD, H373, H400, H410, GHS07, GHS08, GHS09