The results of studies reflecting the state of environmental safety at the global and regional levels over the last 3 years are reviewed. The mutual influence of environmental and economic problems is noted; since economic security is a vital human interest, it is an integral part of environmental security at all economic levels. It is assumed that great progress in further research can be expected in the use of environmental safety provisions in the field of economics and economic modernization of the general theory of environmental safety.

The technique for constructing a thermodynamic model of chemical transformations that occur in ecological systems, which can be used to study the course of ecology, is proposed. The information necessary for students studying environmental disciplines for the independent implementation of thermodynamic calculations is presented.

The results of publications on the level of environmental safety of bakery production are summarized. The production potential of the baking industry is characterized. The components of ensuring environmental and technosphere safety of baking enterprises in the city of Orenburg are highlighted. It is concluded that the wide introduction of the best available technologies is the main way to enhance environmental and technosphere safety of the bakeries of the Russian Federation.

The article shows the possibility of restoring the internal surfaces of parts and regulating the processes occurring in the plasma stream to create various micro- and nanostructures through the use of a number of design solutions of the plasma torch.

This work is devoted to the development of a new method for modeling information systems of multi-criteria design, based on expert ranking of criteria. The possibilities of the fuzzy-set theory and the possibility theory allow for a comprehensive analysis of criteria by reducing numerical indicators to a qualitative form, passing to the corresponding fuzzy relations of preference. Some of the information may be lost, therefore conclusions should be applied, both on the basis of “quantitative” processing of the results of measuring the criteria, and on the basis of “qualitative” processing. If these conclusions coincide, then their adequacy will be confirmed based on the initial data. Since the modeling of complex design systems is determined by several criteria defined on different base sets, and the problem of determining the multi-criteria efficiency in conditions of incompleteness of the initial data remains relevant, within the framework of this article, an optimization method is proposed simultaneously according to many criteria with incompleteness of the initial data. The difference between the described method lies in the fact that the expert ranking of criteria enables to formally set fuzzy preference graphs that make it possible to obtain comprehensive information about estimates in the rank scale during pairwise comparisons, with the aim of subsequent search for Pareto-optimal solutions in multi-criteria problems.