Water abstraction from natural sources is removal of water from surface water bodies and aquifers for consumption. This does not include water used for electric power generation, ship locking, passage of fish and maintenance of navigable depth.

Water consumption (use) means use of water removed from different sources for communal and household needs. Consumption of recycled water and reuse of waste and sewage water is excluded.

Recycled and consequently used water refers to amounts of fresh water saved due to application of recycled and consequent water supply systems,including use of waste and sewage water. Recycling water use does not include consumption in industrial and communal heating systems.

The rate of recycled and consequently used water in total amount of industrial water consumption is calculated as the ratio of recycled and consequently used water to the total volume of this water and water consumption for industrial needs (excluding agricultural needs).

Waste water discharge into surface water bodies includes amounts of water pure corresponding to standards, water purified according to standards and contaminated run-offs (industrial and municipal).

Stationary source of air polluting emissions is defined as immobile technological unit (device, apparatus,etc), that in the process of work emits contaminating substances in the air. Other sources (pit heaps, reservoirs,etc) are also classified here.

Volume of pollutants captured (detoxified) includes all types of pollutants captured (detoxified) by dust-arresting (gas-cleaning) plants out of the total volume of pollutants emitted by stationary sources.

Harmful substances emitted into the atmosphere by stationary sources include total amount of all contaminants coming to the air basin both after treament at dust-arresting (gas-cleaning) plants (as a result of insufficient capture and treatment) and without treatment (contaminats from organized and non-organized sources).

Reforestation comprises activities aimed at restoration of forests on cutting areas, burnt out areas, waste grounds, glades and other former forestlands. Reforestation includes planting, sowing and measures promoting natural renewal of forests.

Maintenance fellings are carried out in the process of growing and maturing of plantations and suppose cutting down of selected trees and bushes to secure better conditions of growth for other trees.

Reservers are those unique and typical withdrawn from economic use areas of geographic zones that are used for maintenance of natural complex and study of it within or out of its boundaries in comparison with the ecological situation.

Investments to environment protection and rational use of natural resources are volume of investments for construction, reconstruction, expanding and technical reequipment of concrete ecological and resource protecting capacities. This mainly includes equipment and installation for refining of polluted industrial and communal waters, dust gas refining installations, periodic water supply, hydrotechnical installations against erosion (including installations for dissemination, against sediments) recultivation of lands out of use, objects and installation for protection and recycling of wild animals and valuable fish resources installations for complex use of natural resources and etc. Costs for reduction of general manufacturing expenses, quality rising and etc, connected with technical equipment availability and capital expenditures for environment protection are not included.