Polycyclic aromatic hydrocarbons (PAHs) are a major category of ubiquitous environmental contaminants. PAHs are of major concern because of ubiquity, mutagenicity/carcinogenicity, bioaccumulative nature and ability to transport to longer distances as well as in the food chain. These pollutants are contaminating all segments of the environment in large quantities by various anthropogenic activities resulting in ecological imbalance. The rapid advancement of technology, industrial development and application of toxic substances has resulted in the contamination of different components of the environment. This contributed volume serves as a comprehensive compilation of different sources and remediation methods for PAH contamination in the environment.