Polycyclic aromatic hydrocarbons

Similar term(s): PAHs, Polyaromatic hydrocarbons, PNAs, polynuclear aromatics, PCAs, polycyclic aromatics.

A group of over 100 different organic compounds composed of several benzene rings. Some of them are persistent and carcinogenic.

PAHs are commonly formed during the incomplete burning of coal, oil and gas, garbage, or other organic substances like tobacco or charbroiled meat.

Generally, tobacco smoke is by far the most important source of exposure for humans.

Source: GreenFacts

Example of polycyclic aromatic hydrocarbon: naphthalene

Source: MadSci Network General Biology 

Español: Hidrocarburos aromáticos policíclicos
Français: Hydrocarbure aromatique polycyclique

Respiratory Diseases

Ozone

Particulate Matter

Nitrogen Dioxide

Marine Litter