The article considers some methods of risk management at production facilities and problems of residual risk assessment.

A brief review of the areas of application of standardized methods for risk assessment was conducted, as well as an analysis of the results of assessing occupational fire and occupational risks in railway transport. The approach to management of residual risk is offered on the basis of the factors forming it.

This paper presents the methodology and technologies of information resources formation for informational analytical systems in the territorial management of development risks and safety of social, natural and technogenic systems. The structure of information flows of spatial monitoring data as a basis for centralized data warehouse and information exchange methods is proposed here. Principal requirements to information resources for risk assessment are formulated.

On the basis of probabilistic-statistical method methodical aspects of formation of system of initial data on an assessment of a possible situation which can develop as a result of influence of the opponent in the territory of theRussian Federationin the conditions of the modern military conflict are considered. The advantages of the probabilistic-statistical method over the traditional deterministic one are shown on the example of "fast global impact”. It is shown that the risk-based approach can be successfully applied in civil defense planning activities in conjunction with the state supervision in the field of civil defense. The introduction of a risk-based approach will help to determine the risks of possible military conflicts againstRussia, to identify priority scenarios of military conflicts for civil defense planning, to assess the effectiveness of planning, to make timely adjustments to the results of monitoring of potential threats and the state of civil defense.

The article deals with the risks associated with the uncontrolled increase in the volume of municipal waste placed around cities, and the lack of an infrastructure for the safe disposal of waste.

The article regards the main factors of harmful impact on environment as well ecological security issues of former Mining and Processing Plant (MPP) “TUVACOBALT” on the base of geoecological researches of Tuvinskiy Institute of Integrated Development of Natural Resources of the Siberian Department of the Russian Academy of Sciences in 1962—2017. Analyses results of arsenic containing cobalt ores as well as tails of their hydrometallurgical conversion, soils, waters and plants are presented; it is highlighted the hazard from huge volumes of accumulated high concentration arsenic waste products, including in the toxic soluble state. At present the waste products are exposed to wind and water erosion, at possible mass effluence into High Yenisei basin they represent the large scale threat of environment pollution. To solve the problem of territorial ecological safety of former MPP is possible only by creation of the new technologically advanced mining and processing enterprise that disposes of arsenic containing waste products.

Low temperatures and abnormal meteoconditions of the North have significant effect both on the frequency of accidents, and on development of accidents. Abnormal weather conditions of the North are characterized by the powerful temperature inversions arising at an anti-cyclone at the expense of the radiation of permafrost soil at extremely low temperatures of air and conditions of air stagnation. These abnormal conditions influence process of gas dispersion in the atmosphere, promoting his delay and formation of explosive concentration of gas at the Earth's surface. As a result the accidents risk of the gas pipelines occurring according to the scenario — the expiration of gas without the subsequent ignition increases. The formed congestion of explosive concentration of gas at Earth can lead further to explosion and the fire.

Methodical approach to risk assessment of the emergency expiration of gas from the gas pipeline under abnormal meteoconditions of the North is presented in article. "The event tree " of the gas expiration from the gas pipeline at low ambient temperatures taking into account abnormal meteoconditions is developed. The implementation frequencies of emergency scenarios at the expiration of gas from the gas pipeline intended for quantitative assessment of accidents risk of gas pipelines at low ambient temperatures are estimated. Influence of temperature inversion on the size of excessive pressure of a shock wave at explosion of a cloud of air-gas mix of methane and to increase in range of the striking factors at failure of the gas pipeline is proved.