Abbreviations, symbols and quantities. Preface and Introduction. Fundamentals of radioactive contamination and general principles of decontamination. Basic terms and concepts. Biological effects of ionizing radiation. Basic safety standards for radiation protection in the course of decontamination. Contamination with radioactive substances. Standardization of experimental methods in studies on contamination and decontamination of solid phase surfaces. Surfaces of solid contaminated materials and sorbents - prevention of contamination and facilitation of decontamination. Behaviour of trace amounts of radionuclides in the course of decontamination. Decontamination agents. Special part: a detailed consideration of decontamination techniques. Decontamination of nuclear power plant circuits. Decontamination of hot cells. Decontamination of disassembled components of nuclear power plants, machinery parts and tools. Decontamination and decommissioning of nuclear facilities. Decontamination of buildings and work places. Removal of tritium from laboratories and other work places. Decontamination of protective clothing, footwear and other protective equipment. Decontamination of environmental terrain and road systems. Decontamination of persons. Decontamination of domestic animals. Decontamination of human and animal food. Decontamination of water. Organization of decontamination activities. Planning of decontamination actions. Decontamination Centres. Treatment of radioactive wastes resulting from decontamination. Characterization of RAW. Methods of radioactive waste treatment. Economic analysis of decontamination. Costs of means used for surface decontamination. Benefit resulting from decontamination. Subject Index.