The scientific study of the biochemical and chemical phenomena occurring in the environment is known as environmental chemistry. It also encompasses the study of the sources, transport reactions, effects and future of chemical species present in the soil, air and water. It also delves into the anthropogenic and biological influence on these. Environmental chemistry is an interdisciplinary science that integrates the principles of aquatic, atmospheric, soil and analytical chemistry. The chemical pollutants that contaminate the environment include heavy metals from industry, organometallic compounds, urban runoff and nutrients leaching from agricultural lands. This book is a compilation of chapters that discuss the most vital concepts in the field of environmental chemistry. Such selected concepts that redefine this field have been presented herein. Those in search of information to further their knowledge will be greatly assisted by this book.