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  • The influence of vehicles on the dust environment of industrial premises

    The article analyzes the influence of an air cushion vehicle as a source of dust on the general and local picture of the dust situation in an industrial premises and assesses the significance of the increase in the concentration of dust particles in the dust and gas environment. A model for measuring the dustiness of the working area of industrial premises using a special set of high-frequency bandpass filters and a PC is proposed. Determination of dust content in industrial premises is carried out by the received spectrum of the acoustic signal, which is a "frequency portrait" of the concentration of dust particles in the dust and gas environment.

    Keywords: industrial premises, transport vehicle, concentration of dust particles, measuring complex, ultrasonic signal, dustiness spectrogram

  • Methodological foundations for the formation of a data bank on the sources of atmospheric pollution in the region

    In the article, the object of the study is the spread of pollutants from the sources of their release. During the calculations, the sources of atmospheric pollution were combined with the allocation of groups taking into account the height of the mouth of the emission source. To reduce time-consuming calculations using the method of combining sources of atmospheric pollution, the program has been created that provides fast processing of a large amount of information. A data bank on the main sources of pollution of the Rostov region has been compiled; systematization and reduction of these sources to a single coordinate system has been carried out. A trial estimation calculation of the regional transport of pollutants from the combined sources of emissions with the construction of maps of pollution isolines was made.

    Keywords: harmful emissions, sources of pollution, the method of unification, data bank, maps of pollution isolines

  • Adaptation of simplified spectral-timbre estimation of dust concentrations in the production of building materials

    The article considers the problem of continuous monitoring of the concentration of dust flow in air ducts at enterprises in the production of building materials. A spectral-timbre methodology for estimating dust concentration based on the analysis of acoustic emission signals is proposed. Two stages of adaptation of the simplified assessment of dust concentration on the bench model and in production conditions were carried out. In the process of adaptation, a piezoceramic sensor is used, an acoustic signal from which using a preamplifier is fed to a recording device called potentiometer with a circular daily diagram . The reference weight method was used to measure the actual dust concentration and simultaneously record the readings of an adapting dust meter.

    Keywords: building materials, dust concentration, dust measuring equipment, acoustic methodology, acoustic emission signals, Fourier spectrum

  • The influence of meteorological characteristics on the determination of the potential of atmospheric pollution

    The article considers the potential of atmospheric pollution by a combination of certain average annual values of microclimatic parameters and the range of their changes. Numerical methods for solving the turbulent diffusion equation are used in the construction of research models of various scales. An important place among them is occupied by methods of component-by-component splitting. With their help, it is possible to solve not only direct, but also inverse (conjugate) problems. The presented program allows calculating one-time concentrations of impurities under various meteorological conditions based on data on sources of impurity emissions and local conditions and provides for the possibility of constructing a topo-base of the settlement platform.

    Keywords: microclimatic parameters, pollution, surface concentrations, topo bases of the settlement platform, methods of component-by-component splitting

  • Justification of the creation of a regional information analytical system for assessing and forecasting the state of the air environment

    The problem of atmospheric air pollution in the regions is considered. Attention is paid to the development and implementation of automated air pollution control systems. The developed information and analytical system has a two-level system and consists of two subsystems: a city information system and a regional information system. The proposed software allows you to perform calculations of surface concentrations of pollutants with the formation of a data bank, as well as the construction of maps of pollution in the region and histograms of the distribution of the level of adverse effects of atmospheric pollution on humans.

    Keywords: atmospheric air, pollution, monitoring, information and analytical system, maps of the pollution of the region