Ecosystem, biosphere, lithosphere, pedosphere, hydrosphere, circle of matters in the nature. Atmosphere, hydrosphere, pedosphere pollution -combustion gases, waste water. Toxicology, determination of toxicity, survey of toxic substances and the possible sources of them. Biological needs of men, coziness of environment, physical effects, unexceptionable character of building materials, radon and its sources. Classification of technologies from the point of view of wastes formation, classification of wastes, composition of wastes, radioactivity. Recycling, stabilization and solidification possibilities of wastes. Laws and decrees concerning the environment and handling with wastes, introduction of EU regulations. Storing of wastes, technological parts of deposit areas, types of storage sites, rehabilitation. Thermal treatment of wastes, municipal refuses incinerating plant, incinerating plants for other and toxic wastes, securing the protection of environment during incineration. Other methods of thermal treatment. Wastes utilized in the building industry, their classification and characteristics of individual groups. Energetic wastes, chemical and phase composition, pozzuolanic activity, possibility of wastes utilization in the building industry. Wastes from metallurgical production, chemical and phase composition, reactivity, possibility of these wastes utilization in the building industry. Wastes from building industry and the possibility of their utilization. Waste water, purification, sludge and its destruction. Economical aspects of wastes managing, utilization of wastes as secondary raw materials, penalties for environment pollution.