The main sources of pollution include: industrial plants, transportation, power system. Among the industries particularly toxic air emissions are generated by non-ferrous metallurgy, chemical, petrochemical, steel, wood, cellulose - paper industry and so on. Of aggregation of all the polluting substances are divided into solid, liquid and gaseous, the latter make up about 90% of the total mass emitted into the atmosphere substances. In many countries, industry provides the bulk of pollution. A significant proportion of air pollution, especially in cities and towns, making vehicles. Using reutilization can improve the ecology of both individual cities and entire countries. Reutilization is used to obtain from the finished product through its processing of new products with the same or a closely related species (receipt paper from waste paper, metal from scrap), usage of waste management in the same industry as the starting material for other industries. Replacement of primary raw materials for recycling has significant environmental benefits: reducing the production of steel consumption is 47-74%, reduction of air pollution - up to 80% reduction in water consumption - by 40%, etc. Production of aluminum from scrap requires only 5% of the energy of its smelting of bauxite. In many countries, due to increasing amounts of different types of waste got a complicated problem of disposing and recycling. Disposal of industrial wastes has not only economic value - getting valuable secondary minerals, but also allows you to eliminate the sources of pollution.