Polycyclic Aromatic Hydrocarbons (PAHs) 1
Polycyclic Aromatic Hydrocarbons (PAHs) 1 : Organic compounds which include only carbon and hydrogen with a fused ring structure containing at least two benzene (six-sided) rings. PAHs may also contain additional fused rings that are not six-sided. The combustion of organic substances is a common source of atmospheric PAHs