Sources, Toxicity, Potential Cancer Risk Assessment and Analytical Methods for Monitoring of Polycyclic Aromatic Hydrocarbons

Abstract

Pollution of polycyclic aromatic hydrocarbons (PAHs) has drawn much attention around the world. Recent years have seen an upsurge of interest in developing low cost and reliable methods for the detection and precise determination of Polycyclic Aromatic Hydrocarbons (PAHs), because of their carcinogenicity and toxicity. A comprehensive review focusing on sources, accumulation and toxicity of Polycyclic Aromatic hydrocarbons is presented. The review also highlights the current best practices for analysis of PAHs and discus in details the potential cancer risk assessment of Human risk exposure to PAH via three pathways. There is an increased need for laboratories in developing countries to determine such class of chemicals. A major focus revealed the need for low cost method that can be easily implemented such as Dispersive liquid–liquid micro-extraction.