Environmental Chemistry provides an introduction to fundamental concepts in environmental chemistry. The book emerged from a short lecture and practical course given to first year students in the School of Environmental Sciences, University of East Anglia. It adopts the earth-air-water factory as an analogue to illustrate the way in which chemical principles operate in the environment. The book traces the hydrological cycle and the chemical processes which occur as water, with its dissolved and particulate load, moves from the atmosphere onto the land surface, into rivers, lakes, and oceans and is eventually incorporated into marine sediment. A glossary of terms is provided for readers who do not have an extensive background in chemistry. Although aimed at first year students studying environmental sciences, chemistry, geology, biology, or other science subjects, this book should also appeal to sixth formers studying chemistry or other sciences to ""A"" level, as well as to anyone with (or willing to acquire) a basic knowledge of chemistry and interested in how the natural environment operates as a chemical system.