The scientific study of the chemical and biochemical phenomena that occur in natural places falls under the discipline of environmental chemistry. It deals with the study of the sources, transport, reactions, effects and fates of chemical species in the air, soil and water environment. It is also concerned with the effects of human and biological activity on these. This interdisciplinary science involves aquatic, atmospheric and soil chemistry. Such activities may have an impact at a local or a global scale. Environmental chemistry plays a crucial role in the identification and detection of pollutants. It also helps in characterizing the nature and source of such pollutants. The book studies, analyzes and upholds the pillars of environmental chemistry and its utmost significance in modern times. It includes some of the vital pieces of work being conducted across the world, on various topics related to this field. This book is appropriate for students seeking detailed information in this area as well as for experts.