RESEARCH OF AEROIONAL AIR REGIME OF TRAINING FACILITIES AND DETERMINATION OF MEANS OF ITS NORMALIZATION

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Concentrations of air ions are an important indicator of indoor air quality, regardless of the purpose of the premises. Therefore, the concentrations of air ions are regulated by international standards. In Ukraine, the concentrations of air ions are determined by the hygienic labour classification according to the indicators of harmfulness and danger of production environmental factors, the severity and intensity of the labour process. The research of the concentration of air ions, their changes in space and time, as well as the development of organizational and technical measures for their normalization in training facilities is an urgent scientific and practical problem of civil security, which needs to be solved. The aim of the research was to study the dynamics of air ions concentrations changes in general-purpose training facilities and to develop measures for normalization and maintaining them at the level determined by the norms. For this purpose, the research of the dynamics of concentrations of n+ and n- air ions in training facilities during the school day was undertaken. The obtained measurement results allow us to make the following conclusions and provide recommendations. Measurements of changes in air ion concentrations during the school day in training facilities show that the most significant factor in deionization is finely dispersed dust, which is present in the air due to the movement of students during breaks, who leave and enter the classroom. A comparison of the data obtained for training facilities with and without exhaust ventilation shows that the air ion regime in the ventilated room is more stable. This difference increases with increasing ambient air quality due to more intense infiltration. The researches of similar indicators for office facilities have shown that the constant presence of staff also does not affect the air ion regime of the premises, i.e. these results can also be applied to the administrative facilities of higher education institutions. The serial humidifier increases the concentration of air ions of both polarities, so it is advisable to use them at least in specialized classrooms.