Polycyclic aromatic hydrocarbons (PAHs) are mainly formed
from the incomplete combustion of fossil and biomass, which have
been detected at elevated concentrations in municipal sewage
and surface water.PAHs, typical persistent organic pollutants
(POPs), are among toxic pollutants of most concern due to their
high bioaccumulation and adverse health effects such as mutagenic,
carcinogenic and teratogenic properties .