The sorption capacity of some types of dust in the production of building materials, structures and products. For example, cement and wood dust being suspended in the air of the working area or in the air, absorbs substances higher hazard class.

Keywords: cement dust, wood dust, sorption capacity, fractional composition, hazard class

The article studies the method of the distant measurement of the concentration and the disperse content of the dust in the air of living and working areas in the real time mode. The use of the laser sounding as a highly precise method of measurement and air quality control is based. The results of the implemented research are displayed. The device that was used for the studies of the concentration of the disperse dust content is analyzed. Its use for the control of the air quality of the city atmosphere is based.

Keywords: dust, suspended solids, concentrations, disperse content, working zone, living zone, laser sounding, safe working conditions, ecological monitoring, optical method

One of the most important systems for ensuring the required air quality in Orthodox churches is the ventilation system. Mechanical ventilation is getting contaminated during operation. The air, passing through the air ducts, contains dust particles, including pathogenic bacteria. To prevent bacteria from multiplying in the ventilation system, bactericidal filters must be used. Halls of Orthodox churches belong to public buildings with a large crowd of people with a long stay. Such premises require a bactericidal efficiency of at least 90%. For the ventilation systems of the church of St. Theophan the Recluse, the authors proposed and implemented a device for bactericidal air treatment using ultraviolet radiation. The bactericidal effectiveness of this device was 92%, which is higher than required. The authors recommend using the proposed device for public buildings.

Keywords: Orthodox church, church buildings, ventilation of religious buildings, bactericidal treatment of air, ultraviolet radiation, air disinfection, bactericidal effectiveness

In article the sections method offered by professor Azarov V. N. for assessment of fractional composition of the dust arriving on air Wednesday is considered. Application of this method when processing results of the dispersive analysis of cement dust is described.

Keywords: dust, pass function, fraction, diameter of a section, probabilistic corridor of distribution

In article the analysis of technological processes of repair construction works as sources of formation of fine dust is carried out. Results of pilot studies according to fractional composition and concentration of dust in urban air environment around carrying out such works are given

Keywords: dust, dust emissions, concentration, fractional structure, fine particles

Results of the researches on assessment of pollution of urban air environment conducted by foreign and Russian authors by fine dust of a natural origin are given in article

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

In article questions of nonlinear interaction of acoustic waves in the air environment in the course of distribution are considered. Is shown that the nonlinearity coefficient in the air environment considerably exceeds that in water therefore generation of secondary waves in the air environment is more effective than in water. The main characteristics of interaction pay off. For realization of the parametrical antenna for information transfer the narrow beam offers to use as converters in the rating antenna high-frequency loudspeakers with high sensitivity in the radiation mode. For reduction of level of side petals in the characteristic of an orientation of the antenna of a rating are given the recommendation about an arrangement of converters in the antenna of a rating and to their coordination with Wednesday by means of acoustic loud-hailers. As initial parameters for calculations passport data of loudspeakers get out. Characteristics of the parametrical antenna at its arrangement in air streams are analyzed. Interaction of waves in a stream is described by the non-uniform wave equation in which the member from a convective derivative estimates influence of a stream. Are considered the non-uniform equations for various working out the resultant generated signal the parametrical antenna in the environment with an air stream. Expressions for calculation of additives to the signals generated in a homogeneous environment for distribution of waves of a stream perpendicular and parallel to the direction are removed. It is shown that the air stream in a near zone of the antenna of a rating increases amplitude of the secondary waves generated by nonlinear interaction. Recommendations about use of the parametrical antenna for information transfer in the air environment are made.

Keywords: parametrical antenna, air environment, rating converter, air stream, wave equation

According to meteorological studies found natural growth of air temperature, coincident in timing with the beginning of a geomagnetic storm. The data were analyzed according to the temperature of about one hundred meteorological stations. Based on this analysis, it was established phenomenon of short-term (30-60 min) growth of surface layer air temperature during the beginning of the magnetic storm, the detected azimuthal drift of the temperature gradient after the start of geomagnetic storms

Keywords: the low-latitude thermosphere, geomagnetic storm, temperatura air, temperaturny gradient, growth temperature

Negative environmental impacts from the enterprises of construction materials industry could be evaluated by the volume of emissions into the atmosphere suspended solid particles with different aerodynamic diameters. The Problem solution of raising the level of atmosphere protection from the negative effects of pollution sources mostly depends on getting and processing information about particulate dust characteristics. Dispersed composition of dust make possible to design the better way for improving the protection level of air pollution by fine particles dust.

Keywords: particle, dispersed, particulate, gypsum, emissions, pollution source, dust emissions,unorganized, efficiency, concentration, air

Increasing the level of protection of the air environment of the fine dust is to address the issue of selection of the optimal operating parameters of dust collectors used in emission control systems to the atmosphere building industries. At various stages of the process of building production generated dust emissions have different particulate composition. This complicates the process of collecting dust removal equipment parameters and requires the detailed experimental studies. In this paper we consider the procedure experimental studies fractional breakthrough on different types of plaster dust production; provides recommendations to reduce the number of required tests; received the minimum possible value of the fractional dust breakthrough, regression models to calculate the fractional slip of dust of various fractions

Keywords: slippage,dust collector, fractional, cleaning, dust, efficiency, dispersed, options, gypsum

The article analyzes the state of urban air. It proved the impact of cement industry on air quality. The article also analyzed the technological process of cement production. As a result, built carrying circuit material flows. Carrying circuit material flows determined that dust is highly polluting air environment, because the dust is released at each stage of production. Analysis of the cement production process has allowed to identify the main objects that are involved in the process of air pollution, as well as to establish their relationship. The result is a physical model of the process of air pollution. Further, on the basis of a physical model of the process of pollution, it is possible to construct a physical model of the process of reduction of air pollution.

Keywords: the air of the city environment, the process of cement production, carrying circuit material flows, physical model, process air pollution, cement dust

The article reviews questions about description disperse composition and concentration of dust using the theory of stationary random functions. This approach allows us not only to obtain the characteristics of disperse composition of dust in the air, but also determine the number of additional parameters, namely, the average residence time fractional concentration above a predetermined level, the average number of outputs fractional concentration per unit time for a fixed level. Examples of correlation functions that can be used to approximate empirical data in the case of stationary процесс are submitted.

Keywords: air medium cities, disperse composition of dust, stochastic process, random function, the fractional composition of the dust, the integral concentration, correlation function, stationary process, normal distribution formula Rice, the function passes

In this paper, discussAn algorithm for control equipment in heating, ventilation and air conditioning system as part of intelligent building control based on indicators of climate comfort and energy conservation. We derive solutions corresponding to a particular situation.

Keywords: sensors, heating, ventilation and air conditioning, intelligent control, decision making, control algorithm

The article presents ecological heat and power recuperator for air heating. Due to the development of jet turbulent flow of the heating air, this device achieves positive heat exchange effect. It also allows reducing the noxious elements in combustion gases, exhausting into atmosphere.

Keywords: energy saving, ecology, heat-exchange, perforated surface, temperature, heat-exchange intensification

The article reviews the three methods of assessment of vehicle exhaust gases in the countries of the European Union. In the first method fuel as an indicator of the transportation activity is used in combination with the average emission coefficient. The second method accounts for the fuel consumption of different types of vehicles and their emission standards. The third method allows for calculating exhaust gas emissions in combination with technical data and data on transport activity. The article presents equations to calculate the exhaust gas omission for each method and reviews examples of the particulate matter characteristics of the emissions of passenger and freight transport. The article also proposes the use of a log-normal law for dependence of transition of number of particles to integral functions on mass distribution of particles by diameter.

Keywords: exhaust emissions, particulate matter, concentration of pollutants, pollution concentration, pollutant index, transportation categories, vehicle categories, pollution standard