Data on the effect on human health of dust from office air conditioners are presented. The microbial and dispersion composition of dust has been studied. Studies have shown that the microbial number in the rooms depends on the floor on which the air conditioner is installed. Also, the presence of large fractions of dust decreases with increasing height at which the air conditioner is installed.

Keywords: air pollution, dispersion analysis, air conditioning systems, human health,bacteria, mukor, aspergillus, penicillium

This article discusses the use of waste disposal technologies, their technological and environmental-economic assessment. The relevance of this work is determined by the current trend on finding affordable and effective technologies for waste disposal, taking into account their energy potential. A comparative analysis of existing technologies for waste treatment and a feasibility study on the utilization of organic and inorganic carbon-containing waste by the pyrolysis method have been carried out. The authors analyzed the Russian and foreign experience of using waste technologies as alternative energy sources. The energy component of production and consumption wastes is considered. The scheme of the production complex using the pyrolysis technology, focused not only on the processing of waste, but also obtaining the sought-after useful competitive product.

Keywords: ecology, pyrolysis technology, waste recycling, municipal solid waste, MSW, biofuel

This paper discusses the current problems of waste management: sorting and their further processing. The average morphological composition of waste in Russia and in the world is presented. Possible methods of recycling waste components on different morphological composition are considered. A comparative analysis of the existing promising technologies for processing waste used in the Russian Federation, including municipal solid waste by burning, pyrolysis and plasma gasification, from the point of view on economic and environmental efficiency of the process. The technical and economic features of the low- and high-temperature pyrolysis process are given. As economic indicators used are specific capital investments, the cost of utilization, energy consumption and production recoupment. The assessment of environmental efficiency is determined by indicators such as the degree and duration of waste disposal, the generation of waste in the recycling process, and the pollution in the soil, groundwater, and the atmosphere.

Keywords: ecology, pyrolysis, waste treatment, municipal solid waste, solid waste, recycling, waste management

In article the qualitative structure of emissions of pollutants in the atmosphere of St. Petersburg is considered and also dynamics of change of volumes of emissions of solid substances on air environment of the city is analyzed

Keywords: emissions of pollutants, atmospheric air, the solid (weighed) substances, stationary sources, non-stationary sources

Based on the results of theoretical and experimental studies, the necessity of taking into account the “overshoot effect of large particles” in inertial devices with small diameters is justified when assembling dust collection systems with devices of different sizes.

Keywords: vortex inertial dust collector with counter-swirling flows (CTF), suction from the bunker, differently polluted flows, aerodynamic resistance, overshoot

In the article, affecting of anthropogenic factors is considered natural environment of municipal territories. The variants of equipping with modern amenities of sanitary-hygienic zones of enterprises offer by planting of greenery.

Keywords: Key words: noise, pollution with gasses, motor transport, green areas, sanitary protection zone, tree-shrub vegetation, species composition

The article is devoted to the issue of improving the environmental safety of the construction industry by improving dust collectors of dust removal systems for the aspiration schemes of the construction industry/ It was proposed use additive-integrated dispersive analysis of variance of dust particles emissions throw out into the atmosphere by aspiration systems. The article proposes the improvement of complex analysis of variance using hydrodynamic criteria in output functions. Modified output data and additive-simplex allows getting approach to evaluate characteristics - equivalent sizes and speeds of sedimentation-soiling of dust particles with a higher degree of accuracy of the results. It makes possibility to determine the ranges of size’s and velocities’ changes with real ability. It is possible to obtain more reliable data of sedimentation rates and equivalent particle sizes for the studied dust samples of building materials using the distributions of the hydrodynamics criteria. Analytical approach to determining the density’ distribution of the numerical values of the hydrodynamics criteria in the output function allowed us to clarify the more real values of sedimentation rates and the equivalent particle sizes and the range of their changes both. This way analysis of variance of dispersed dust particles could call additive-complex or simplex approach. The obtained regressions in processing the research results were used in the development of devices for capturing dust of dispersed building materials from emissions. This way could significantly reduced dust leakage out from aspiration collectors of decreasing dust systems while purifying emissions at the building enterprises. This approach is one of the most effective ways to improve the environmental safety of the building industry.

Keywords: Dust, building material, dust collector, cleaning, leakage, analysis of variance, velocity, sedimentation, criterion, emission, atmosphere, dust removal, aspiration

The article is devoted to the issue of improving the environmental safety of the construction industry by improving the systems of decreasing dust emissions by aspiration systems using a comprehensive dispersive analysis. There was proposed to develop a promising approach using the criteria of hydrodynamic similarity in the output functions of the complex analysis of variance to increase the efficiency of aspiration decreasing dust systems in this article. The article focuses on the environmental problems of building construction industry. The volume and different kinds of mixtures of bulk building materials and cements to produce various types of concrete construction units and materials are in stable demand every year. It means that average amount of dust particles substances in emissions at the manufacturing production of building materials every year too. The results of studies show that a significant content of fine particles, for example, 10 microns or less is concern in dust emissions systems of aspiration at the building construction enterprises. One of ways to increase the environmental safety is reduction of dust emissions to design dust capturing devices that have low values of slippage out from aspirations’ decreasing dust systems. It was achieved by special complex integrated analysis’ method of variance dust that applies hydrodynamic sedimentation of particles. It is the way to obtain distribution of dimensionless numerical complexes — the hydrodynamic similarity criteria for the dust studied samples. There presented results of experiment that gave more reliable approach to get evaluations of the complex analysis of particles sedimentation velocity’s distributions.

Keywords: Dust, building material, dust collector, cleaning, overshoot, analysis of variance, velocity, sedimentation, criterion, emission, atmosphere, dust removal, aspiration

The paper reveals the problem and causes of the formation of fetid compounds in the systems of transportation and wastewater treatment. Various methods used at the moment to eliminate and neutralize unpleasant odors, as well as a number of measures to clean the air from fetid compounds are considered. A new method is described to prevent the formation of odors of fetid compounds in wastewater transportation and treatment systems and a device for its implementation using low-intensity cavitation. The scheme of the device for sewage treatment from smells of fetid compounds. The principle of operation of this installation is described.

Keywords: fetid compounds , air purification, biological purification, low-intensity cavitation.

Radon is universally present in the atmosphere and is the most important natural source of radiation. The highest radon doses relate to staying in buildings. However, the damage from radiation exposure to radon is associated with the progression of lung cancer and the premature death from this disease of people exposed to radiation. The application of the principle of optimization of radiation protection in a radon exposure situation is complicated by the fact that a number of tasks remain ignored.

Keywords: Radon, territory, gas, radiation, emitting, dose, volumetric activity, source, site, protection, premises

The article is devoted to the approach to the development and design of effective dust collectors for the aspiration systems of the construction industry. It was proposed and implemented the study of the particle shape factors that determine the hydrodynamic features of gas flow around dust particles, for example, in the aspiration schemes, which are most spread and applied in the construction industry using the results of complex analysis of variance it this article. It was presented results of implementation hydrodynamic criteria in the output function of the analysis. The values’ meanings of the particle shape factors of the dusts’ particles were gained and obtained at the final stage of experiment. It was obtained regressions for particle shape factors as functions of hydrodynamic criteria. It was proposed dependences to clarify the particle sedimentation-growth velocities taking into account the influence of the particle shape factors of the studied dust samples. It was allowed possibility to assess and obtain ranges of changes in the values’ meanings of particle shape factors. It was obtained more reliable results for determining the sedimentation values’ velocities of dust particle as a determining result of complex analysis of variance of particles also. The research results allow the development and design of dust collecting devices for cleaning emissions in dust removal systems of the aspiration schemes of the construction industry. These dust kinds of collector provides a significant reduction in dust leakage out from dust removal systems of the aspiration. This way become one of the highly effective prevents polluting ways that allows to improve environmental safety of the construction industry.

Keywords: Dust, building material, dust collector, cleaning, leakage, analysis of variance, velocity, sedimentation, criterion, emission, atmosphere, dust removal, aspiration

The article describes solutions aimed at improving the efficiency of dust collection systems with vortex inertial devices on the opposite swirling flows. The proposed design solutions are designed for the production of various building materials.

Keywords: vortex inertial dust collector with counter-swirling flows (VZP), suction from the bunker, mixed-flow flows

The article discusses the features of the climatic conditions of St. Petersburg, affecting the formation of the ecological situation in the city, including the content of fine dust particles in the atmospheric air.

Keywords: fine dust, temperature, relative humidity, wind speed, wind rose, air pollution

Data on disperse composition of the dust which is formed in the course of drying of a semi-finished product of a ceramic brick in the dryer drum are provided. The data necessary for the choice of effective systems of cleaning of emissions at this stage of production are also obtained

Keywords: production of a ceramic brick, drying of a semi-finished product, microscopic analysis, fractional structure, bulk density, corners of a natural slope

The article describes the study of fine dust at the stage of packing and packaging of particulate material. Attention is given to fine particles, which is PM10 and PM 2.5, that have a negative impact on human health in the process of packaging chemicals.The object of the study is the sodium salt of naphthalene-2-sulfonic acid, which is the starting crude in the chemical industry and organic synthesis.As a result of the sedimentation analysis, the sizes of the particles deposited in the experimental setup were determined and, based on the data obtained, the particle size of dust was formulated depending on the settling time.The results obtained are used in the engineering of aspiration systems in industrial plants.

Keywords: fine particles, chemical dust, sedimentometry, PM10, PM2.5, particle size distribution, naphthalene-2-sulfonic acid sodium salt

In the article, the groups of parameters of the properties of dust aerosol released into the air pool at the clay and sand transshipment sites of the construction industry, in particular at brick factories, are investigated. The main type of pollutant in the article is considered inorganic dust containing 70-20% silica. The properties of a dust aerosol are presented from the standpoint of the theory of stability of dispersed systems. The main classification feature in the distribution of the parameters of the properties of the groups selected physical nature of the processes and phenomena observed in the dust aerosol. As a result of the construction of a physical model of the process of air pollution, a detailed analysis of the objects involved in the pollution process was conducted.

Keywords: Atmospheric air, pollutant, overload unit, dust aerosol, parameters of dust aerosol properties, pollution reduction system

The article is devoted to the study of foreign methods of waste processing and the use of secondary resources. The article also considers the peculiarities of the countries ' legislation in the field

Keywords: waste, secondary material resources, landscaping, recycling, electrical energy, solid residue, chemicals, leakproofness, incineration, filtration, organic, decomposition, recycling, energy efficiency, emission

Every year, the problem of recycling industrial waste in the construction sector is becoming increasingly important. Recycling and recycling of waste is an important way to reduce environmental damage. For more than one decade, developing technological processes and installations for the processing of concrete and reinforced concrete. Annually in Moscow, about 11.5 million tons of construction waste are generated, and in the near future the increase in the volume of concrete scrap in the demolition of buildings, reconstruction, overhaul and accumulation of substandard structures will reach 13-15 million tons per year.

Keywords: Waste recycling, construction, waste treatment, Demolition of housing, industrial waste, enterprises

The article analyzes the theoretical approaches associated with the assessment and selection of the best efficiency of the complexes of methods and means to reduce air pollution in the operation of power plants as objects of urban economy. The advantages and disadvantages of each approach are considered. The physical-energy approach is highlighted as the most acceptable, in which the ecological efficiency and energy efficiency are the main criteria for the evaluation and selection of measures to reduce air pollution.

Keywords: energy facilities, environmental efficiency, energy efficiency, the physical-energy approach, reduction of air pollution

The article presents the analysis of dust pollution of atmospheric air in the vicinity of the enterprise for the production of gypsum products. Given the dynamics of changes in the concentration of fine dust, and also investigated the characteristics of the distribution of concentrations of fine dust РМ0.3, , PM2. 5, РМ5 , PM10 etc.

Keywords: atmospheric air, fine dust, PM0.3, PM0.5, PM1.0, PM2.5, PM5 and PM10, dust concentration, speed, wind direction, air humidity, integral mass distribution function, particle diameter by diameter

The safety of technological processes in the performance of loading and unloading, construction and installation works is becoming increasingly important. The desire of manufacturers to increase the power characteristics of load-lifting mechanisms and their number makes their mark on the unsatisfactory OSH management system in general, plus the discipline and unsatisfactory technical condition of the equipment leave much to be desired. The situation is not better with observance of elementary safety standards, which, as a rule, are skeptical not only for the working class, but also for engineers and managers who do not conduct personnel training, are not interested in the application of personal protective equipment (in rare cases), attestation of workplaces, everything is done formally, as a result of which the picture is not formed in the best way.

Keywords: safety engineering, construction, cranes, industrial injuries, construction and installation works, industrial accidents

The article presents the results of studies of the surface characteristics of textile materials used for personal protective equipment and in construction projects, taking into account the climatic conditions of their operation. The features of their optical and color properties in the open industrial area in the cold period, which form the elements of General industrial safety, are revealed. The influence of low temperature and humidity on the structure and surface properties of materials of the different fibrous composition is experimentally established. This leads to the correction of optical parameters of various objects on construction and industrial sites, determining the conditions of sufficient or limited visibility. The results are adapted to solving the problems of designing environmental spaces of construction projects and the development of innovations in textile materials science and means of individual safety in the industry.

Keywords: fibrous materials, design and evaluation of construction projects, environmental and industrial safety, design of environmental spaces, innovations in textile materials science

The authors (of the research) suggest choosing the most eco- and energy-efficient engineering system in order to purify the air of the dyrer drums dust. The choice should be made on the basis of the analysis and evaluation of the dust properties and determination of the control methods of the dust aerosol stability, which, eventually will ensure its effective destruction as a dispersed system in the air purification process.

Keywords: inorganic dust, disperse system, characteristics of pollutant properties, manufacturing company in construction industry, labour safety, brick manufacture, dryer drum, energy parameters

The article presents a comprehensive analysis of the chemical composition of pollutants in the air basin of the Rostov Region. A retrospective analysis of the ecological situation for the period from 1991 to 2017 is presented. The assessment and analysis of the environmental situation with respect to pollution of the surface layer of the air basin in this region were carried out. The most effective methods and methods for reducing emissions of pollutants into the atmosphere in this subject are proposed.

Keywords: environmental situation, pollutants, exhaust gases, stationary sources, vehicles, chemicals

The article presents the results of studies conducted by foreign and Russian authors on the assessment of urban air pollution with fine dust of natural origin

Keywords: air quality, dust, fine particles PM10, natural origin, atmosphere