Environmental toxicology refers to the branch of science which studies the damage caused to living organisms by different chemical, physical and biological agents. It includes ecotoxicology as its subfield. The agents which cause environmental toxicology are heavy metals, polychlorinated biphenyls, pesticides and sulfuryl fluoride, etc. This book attempts to understand the multiple branches that fall under this discipline and how such concepts have practical applications. It presents this complex subject in the most comprehensible and easy to understand language. The topics covered in this text offer the readers new insights in the field of environmental toxicology. It aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline.