In article metallurgical production as the metallurgy is one of the main sources of technogenic environmental pollution and a working zone is considered. Authors have described the main sources of formation of fine dust by results of which the analysis of fractional structure of the dust particles which are allocated during the operation of the arc melting furnace has been carried out. The submitted data demonstrate that the dust coming to rooms of the shop has the sizes from 3 to 18 microns. The share of mass of particles with sizes less than 10 microns in air of the electrosteel-smelting shop makes from 15%.

Keywords: fine dust, disperse analysis, sources of formation of dust, steel-smelting furnace, metallurgical dust

The imbalance in the development of the forestry, with respect to the valuable and non-standard woods used by the construction enterprises, entails an ecological catastrophe in the regions. For the wide use of hardwood in the production of building materials and products, a technology has been developed to direct the development of operational properties. Modification of the structure of the wood due to volumetric impregnation of capillaries helps to reduce water absorption, increase fire resistance and biostability of wood, and also contributes to meeting the growing needs of producers of wood-based building materials in a cheap local raw material quickly renewable resource base

Keywords: wood, construction, fire resistance, hardwoods, modified wood, biosphere

The causes of death of people during a fire, as well as the effect of toxic combustion products on the human body are analyzed. It was found out that the main problem of unhindered evacuation of people from the building is blocking the evacuation routes by smoke. Methods of fighting smoke in a fire are considered and their advantages and disadvantages are determined. One of the ways to solve this problem is ultrasonic coagulation of aerosols with subsequent precipitation. Effective coagulation of smoke in a fire can be provided by a piezoelectric ultrasonic oscillatory system.

Keywords: fire, fire safety, multi-storey public building, toxic combustion products, smoke removal, smoke deposition, high intensity ultrasonic vibrations, ultrasonic radiation, acoustic radiator, piezoelectric ultrasonic oscillatory system

The article deals with topical issues of mercury waste disposal. The analysis of the possibility of secondary use of demercurized cullet under the condition of maximum extraction of mercury concentrate. On the basis of physical and chemical properties of mercury, a comparison of two methods of demercurization, during which it was found that the technology of thermal demercurization will reduce the percentage of remaining mercury in cullet.

Keywords: mercury-containing waste, demercurization, cullet, fluorescent lamp, waste disposal

The use of higher aquatic plants (VVR) for water purification from various pollutants is an efficient system in wastewater technologies. For the development of bottom sediments of the river Temernik in Rostov-on-don it is proposed to use remotely operated underwater suction dredger, eliminates the secondary pollution of water. The project of the new landfill for disposal of bottom sediments is a waterproofing geomembrane Blackline TFS on the basis of high-pressure polyethylene and low-density LDPE. In the ""Target environmental program of improvement of the water basin of the river Temernik"", envisages clearing the riverbed with a length of 2 km, construction of disposal site sediments (PSDO), the establishment of biomodule with water hyacinth. During wastewater treatment water hyacinth decomposes and oxidizes industrial and organic sewage into simple elements and absorbs them as nutrition.Long massive root of water hyacinth absorbs heavy metals, oil products, phenols, synthetic surface-active substances (surfactants) and other substances.

Keywords: testing, toxicity, sediment, hyacinth, heavy metals, oil products, geomembrane, polyethylene, degelmintizatsiya

The authors propose to choose the system of air purification from grain dust, which has the maximum ecological efficiency and energy efficiency, based on the study of the properties of this pollutant. Investigation of the grain dust parameters of the properties of the dispersed phase and dispersion medium, as well as energy parameters will affect the stability of the aerosol, i.e. its ability to resist external influences. Changing the stability of the grain dust aerosol and, ultimately, its destruction due to the separation of the dispersed phase and the dispersion medium, is the purpose of the development of air purification system.

Keywords: grain dust, dispersed system, parameters of pollutant properties, energy parameters, stability of the pollutant

At present, more and more attention is being paid to the radiation safety of the population, in connection with this new devices are being modernized and modernized, to improve the state of protection of present and future generations of people from the harmful effects of ionizing radiation for their health. The article considers the key aspects in working with such equipment and suggests measures to reduce the risk of working with it, primarily for personnel, especially in emergency situations.

Keywords: Radiation, source, hot cell, radiation, safety, emergency situation, limitations, degree of radiation

The article presents a comparative analysis of modern methods of sewage sludge utilization in Russia and abroad. A comprehensive analysis of the possible use of sludge in the conditions of typical treatment facilities of the Rostov region, proposed engineering and environmental solutions for the secondary use of sludge sewage as a fertilizer on the example of the company "Istok" Kamensk-Shakhtinsky Rostov region.

Keywords: utilization of sewage sludge (OSV), environmental safety, deworming, economic efficiency

the paper presents characteristics of the solid waste landfill in the town of Novocherkassk, and the dynamics of pollutants’emissions from the landfill site for the period between 2015-2017 as well. The characteristic of the atmospheric air on the border with the nearby residential development and Novocherkassk landfill on the basis of the calculated air pollution index (API) and the complex index of atmospheric airpollution.

Keywords: landfill site, the contaminants, the maximum surface concentration, maximum permissible concentration, air quality

The work reflects estimates of measurements of the fractional composition and the concentration of wood dust at points located at different distances from the woodworking shop. In addition, the shape and adhesiveness of wood dust and its dusting ability are examined.

Keywords: Wood dust, concentration of wood dust, fractional composition, sanitary protection zone, mass distribution by diameters, slipability

The article examines the organizational and technical aspects of detecting leaks and unauthorized taps as an important area of safety of oil pipelines. Priority to the timely detection and prevention of leaks and illegal taps in oil pipelines is the improvement of technical methods of detection.

Keywords: oil pipelines, safety, leakage, unauthorized tapping, warning, technical methods

The article suggests the use of agricultural wastes of the shell of the anacard nut, cultivated in the Republic of Cote d'Ivoire, as a sorption material. This carbon sorbent (0.5 g / l) was used to remove heavy metals, namely iron (Fe), C = 1.05 mg / l, aluminum (Al), C = 0.10 mg / l) from production waste water of the machine-building plant of LLC Rostselmash (Rostov-on-Don). According to the experimental data, the efficiency of metal removal depends on the sorption time and amounts to: for iron - from 28.6 to 97.1%, for aluminum - from 10 to 90% (Table 2). The concentration of metals in treated wastewater (iron C = 0.03 mg / l and aluminum C = 0.01 mg / l) corresponds to the norms of MPC (iron C = 0.1 mg / l, and aluminum C = 0.04 mg / l), which makes it possible to discharge them into the city water drainage system. From the experimental data, it was concluded that this material can be used as a sorbent.

Keywords: walnut shell anacard, Republic of Cote d'Ivoire, agricultural waste, carbon sorbent, wastewater treatment, heavy metals removal

The paper considers the issue of the reduction of radon daughter products exhalation from construction materials into the indoor air of residential buildings. The characteristics of materials obtained through the use of radiation technologies are given.

Keywords: radon, exhalation, equivalent dose, volume activity, radon emanation, penetration, polymers, construction materials, gamma background, radon, radionuclides, alpha particles

Article considers the fundamentals of the organization of construction works in cramped conditions of the current town-planning situation, the impact of construction works on the environment, and a brief description of the negative impact factors is provided. The expediency of a systematic approach to improving the quality of construction is shown, including taking into account the assessment of the state of the environment and the need to reduce the negative impact of construction and installation works on nearby built-up areas. The necessity of taking into account measures to reduce the levels of negative impact on the environment during the project development of the production of works is substantiated, and a number of recommendations are given on the organization of construction works.

Keywords: construction, cramped urban conditions, organizational and technological design, technological processes, environment, organization of construction, construction technologies, construction and installation works, means of mechanization, environmental safe

The article is devoted to environmental security as a factor of competitiveness of enterprises. Disclosed financial parameters conservation activities. The proposed approach of separating environmental efficiency into types to influence on the ecological safety of the enterprise. The purpose of the environmental and social assessment. The proposed decision-environmental decisions. For the solution of ecologicallysustainable enterprises.

Keywords: environmental safety, competitiveness, risk, financial stability, performance, management efficiency

The article presents the physical essence of the method of hydrodynamic reduction of air pollution by foam method as the most effective technology palisadian open for extended sources. The mathematical description taking into account the physico-chemical properties of dust and a bubble of foam, and the parameters of the return to technological raw materials dust particles due to the different physical mechanisms of their capture. Parametric dependence of the efficiency of dust removal as a result of setting foaming method of palisadian provides the ability to forecast its calculation for the considered technology implementation process palisadian air bearing features of the interaction of dust with a layer of foam.

Keywords: Palisadian, dust particles, method foam, foam layer, the efficiency of palisadian, belt conveyors

In the article the modern approach to the assessment of the acoustic impact on the adjoining residential zone under construction or reconstruction of airport complexes. While the features of sources of acoustic impact as ground handling and flight operations. Assessment of acoustic impact on the adjoining residential zone under construction or reconstruction of airport complexes, according to the authors, involves several stages. The implementation proposed by the authors of the stages of the assessment of acoustic impact will allow to identify the zones of acoustic discomfort and plan a set of measures aimed at reducing noise in those areas and thus enhance environmental validity under construction or reconstruction of airport complexes.

Keywords: assessment of acoustic impact of the construction of the airport complex, adjacent residential zone, the zone of acoustic discomfort

The data on the effects of air pollution on human health and the environment. The possibility and presented methods to reduce particulate matter emissions PM 2.5 and PM 10.

Keywords: fine dust, PM 2,5and PM 10, air pollution, health population, monitoring, air quality, quality indicator, climate change, respiratory symptom

The article presents a comparative analysis of dust pollution of atmospheric air of Volgograd and the city of Kabul. Given the dynamics of changes in the concentration of fine dust in the course of the year for these cities, and also investigated the characteristics of the concentration distribution

Keywords: air, fine dust, PM10, PM2,5, concentrations, meteorological parameters, normal distribution, logarithmic-normal distribution law

The problem of determining the environmental hazard in the development and disposal of oil contaminated soil at the time of construction of buildings and structures is very relevant, especially for sites on which previously located industrial zones with different production. Unfortunately, at the moment, there is no clear understanding of the MPC of petroleum products in the ground. Various inspection inspections and specialized landfills treat the degree of soil contamination with oil products in different ways. In this regard, there is a danger of incorrect definition of the hazard class of the soil, which can lead to subsequent pollution of the environment.

Keywords: soil, oil product, hazard class, resolution, pdk, range, ecological condition, soil utilization, construction, concentration, pollution

The soils of the territories adjacent to the city of Rostov-on-Don are studied, characterized by a highly developed transport system. Agricultural land adjacent to the highway is often closed by forest strips. But, large areas of land are not protected by forest strips. A lot of lead accumulates in the soil of open agrocenoses. It is necessary to create forest belts around new highways

Keywords: soil, iead, mobile forms, gross content, forest melioration

The soils of the territories adjoining the waste pits of coal mines are investigated. In the soil, quantities of copper, zinc, nickel and lead were found, more than MPC. Excess of MPC for cadmium is not noted. The content of copper and nickel is 2-3 times higher than their permissible content in the soil, and this situation is observed throughout the study - up to 500 m. A slight excess of the maximum permissible concentration of zinc and lead was noted at a distance of 200-300 m from the waste. It is necessary to restore the territories after the removal of anthropogenic source - waste heaps.

Keywords: soil, copper, zinc, nickel, lead, cadmium, mobile forms, waste heaps

The article presents the results of studies conducted by the national agency of Afghanistan on ecology and environmental protection and Russian authors of studies on the assessment of air pollution in the city of Kabul. An analysis was carried out for the formation of information on the state of air quality in the city of Kabul, when considering its street-road network as a source of chemical pollution of the air environment. A mathematical model of the dependence of the concentration of fine dust (PM10) on three factors: the speed of wind, humidity and temperature in the winter months of the city of Kabul.

Keywords: Air quality, dust, fine particles, moisture, wind speed, multiple regression coefficient, Fisher criterion

The article presents the analysis of dispersed dust cloud formed by the production of works for the storage of waste production of potash fertilizers. The analysis makes it possible to assess the impact of dust on the organism of workers and to provide personal protective equipment.

Keywords: Seimova G.V., Firsov R.G., Rossoshanskij V.V.

In article the description of the safety requirements when carrying out work at height. The results of dust extraction conducted at various heights from ground level, at workplaces of the personnel who work at heights. The analysis gives the possibility to evaluate the dust concentration and provide personal protective equipment of workers.

Keywords: health, height, dangerous manufacturing, safety systems, salt, dust concentration, maximum permissible concentration, means of individual protection