Addressing the persistent environmental threat of organic chemicals with a fresh approach to degradation and transformation processes, this book examines a wide range of compounds as well as abiotic and microbiological reactions mediated by microorganisms. The authors emphasize the pathways used and the broad classes of enzymes involved. They provide an overview of experimental procedures with detailed coverage of the organic compounds that are considered to be xenobiotics. The principles that emerge provide a guide not only for specific compounds but also for those having a more remote structural resemblance. The book contains an extensive literature references and numerous illustrative figures.