Limnology is the science of freshwater or inland water studies. It explores the structure as well as the material and energy balance of aquatic ecosystems. The textbook on limnology conveys the fundamental relationships in limnic ecosystems along with practical aspects. This fully revised edition is divided into 19 chapters. The key topics include: the history of limnology, limnic habitats as ecosystems, the water cycle, groundwater, springs, flowing waters, standing waters, the geography of water bodies, the goals of applied limnology, legislation, organic pollution of water bodies, the origin and treatment of wastewater, inorganic and toxic pollution of water bodies, limits and monitoring, water therapy, and artificial lakes. The chapter on the fundamentals of limnology discusses the individual limnic water ecosystems.