polycyclic aromatic hydrocarbon

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Related to Polynuclear aromatic hydrocarbons: Pahs

polycyclic aromatic hydrocarbon

[‚päl·ē‚sī·klik ‚ar·ə‚mad·ik ′hī·drə‚kär·bən]
(organic chemistry)
A compound containing two or more fused benzene rings such as naphthalene or anthracene.
References in periodicals archive ?
Polynuclear aromatic hydrocarbons in Dashiwei karst tiankeng (sinkholes), south China.
Titanium-dioxide-mediated oxidation of polynuclear aromatic hydrocarbons," Journal of Photochemistry and Photobiology A: Chemistry, vol.
As well as elemental sulfur, which is not a huge safety concern, common raw materials in this process include 2-mercaptobenzothiazole and polynuclear aromatic hydrocarbons, both of which have very high toxic potentials.
The researchers say evidence for cooked carbohydrates is confirmed by both the cracked/roasted starch granules observed microscopically and the molecular evidence for cooking and exposure to wood smoke or smoked food in the form of a range of chemical markers including methyl esters, phenols, and polynuclear aromatic hydrocarbons found in dental calculus.
Contaminants found at the sites include benzene, heavy metals, polynuclear aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and trichloroethylene (TCE).
Effects of polynuclear aromatic hydrocarbons on fishes and shellfish: an overview of research in Virginia.
Sorption properties of polynuclear aromatic hydrocarbons and sediments: heterocyclic and substituted compounds.
Also in this enormous toxic mix were some 2,500 contaminants: asbestos, fiberglass, drywall dust, and vinyl-coated wiring, along with hydraulic oil and many other fuels and combustion product chemicals involving polyvinyl chloride, PCBs, dioxins, and other polynuclear aromatic hydrocarbons, as well as lead, copper, iron oxide, and cadmium.
These grades are produced using state-of-the-art production systems with strict process controls to consistently meet FDA limits of polynuclear aromatic hydrocarbons (PAH) and benzo(a)pyrene.