Purpose. To determine the key principles of environmental security of aquatic ecosystems in the context of sustainable use of natural resources and socio-economic development. Methodology. Comparative analysis and systematic approach. Findings. Principal aspects of water resources management in the states of the world are analyzed in the context of the provisions of the sustainable development concept. Comparison of countries with different levels of development has allowed identifying key methodological provisions that are implemented in the environmental policy ofwater. An approach to determination of the limiting indices of the impact on the environment is proposed. It was revealed that most post-Soviet countries do not use the concept of ecological system and ecosystem services in their legislative framework, which today are an integral part of the environmental policy and legislation of developed countries. The basic principles of the ecological safety of aquatic ecosystems are as follows: a water body (surface or underground ones) is a complex, functionally integrated and self-regulating ecological system. It cannot be considered as a volume with a resource for biological and amenity needs; priority in the water use should be given to the living components that exist in it and ensure its functional integrity. Any aquatic ecosystem should be economically assessed not only in terms of available water resources, but also considering other ecosystem services, particularly, the diversity of its biotic components. All these principles and the approach presented, if introduced into domestic legislation, will allow achieving progress in the field of ecological safety of aquatic ecosystems and sustainable social economic development. Originality. An approach has been improved which determines the efficiency of environmental policy in the field of water resources safety through a correlation analysis of water consumption and population size. Practical value. The research results allow for quantitative assessment of water resource management. The results of the study on the influence of the factor of freshwater resources on the socio-economic development of countries and regions of the world suggest that there is a strong statistically significant correlation in this system of connections.

To assess the impact of not just the battery as such but its multi-element composition on the state of the environment, a new approach is proposed through the determination of the reliability of ecosystems, which makes it possible to obtain quantitative indexes of the stability and losses of natural ecosystems. These data can be used as indicators of the state of the environment, and hence as the assessment of an environmental component that is important for determining the actual impact of the multi-element composition of batteries. On the basis of such indicators, which can be obtained using the SimaPro software, it is possible to calculate thresholds beyond which negative phenomena occur, as well as to predict and simulate situations, to carry out the mapping of sources of risks, to monitor changes, and this will allow identifying the causes of these changes or determining the factors that slow down or retard the approach of ecosystems to a critical state, i.e. to develop preventive measures to avoid disasters. The eco-indicator 99 is one of the methods that allows us to accept one estimate for the whole product - the so-called ecological index. It is the sum of all individual eco-points or partial indexes for all life-cycle processes. The computational procedure is carried out by summing up the results of weighing the phases of the life cycle.

Wydawnictwo SIGMA-NOT wydaje czasopisma fachowe informujące swoich czytelników o najnowszych osiągnięciach naukowych i nowoczesnych rozwiązaniach technicznych w Polsce i na świecie, popularyzuje problemy techniczne oraz poszerza wiedzę i kulturę techniczną.