Written with the needs of students, researchers, and practitioners in mind, this book provides a comprehensive treatment of the composition and chemical properties of soils and of the processes that govern their fate in the environment. Topics include: clay mineralogy, soil organic matter, mineral weathering and stability, aqueous speciation, surface chemistry, ion exchange, adsorption, molecular retention, oxidation-reduction, soil acidity, alkalinity, and salinity. It covers all the important aspects of environmental soil chemistry and includes methodologies, exercises with solutions, and topics related to a broad distribution of environments.