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This study serves as a background document for the Subprogramma Soil of the Regulation for the Advancement of Environmental Technology. The aim of this study is twofold: . to survey the available techniques for preventive and curative soil protection . to signal bottlenecks and report relevant developments in order to indicate the major issues and focal points for desirable, future research. The report consists of four chapters. Chapter 1 discusses the problems of contaminated soils and sediments. In chapter 2 techniques directed to prevent soil contamination are surveyed. Measures for reducing emissions and immisions will be dealt with. Chapter 3 deals with removal and treatment of contaminated soils, groundwaters and sediments. Finally, chapter 4 presents the major issues and focal points for desirable future, research, while singling out special items discussed in the previous chapters.