Literature data and materials of their own research indicate that there are significant deficiencies in the air environment of the closed educational facilities of modern schools of lyceums, which is the reason for the high level of acute respiratory illness among younger pupils in the autumn-winter period and requires the introduction of a set of measures for its optimization. The aim of the study was to provide scientific substantiation of methodological approaches to the development and arrangement of stationary ultraviolet units and to control the quality of bactericidal irradiation of the air environment of educational facilities of junior high school pupils, to determine the degree of effectiveness of its impact on the state of the air environment and the level of morbidity of students with temporary disability. Hygienic, light engineering, microbiological and statistical methods of research were used in the work. Statistical processing of the data was carried out using generally accepted methods. In order to improve the air environment of the educational facilities of junior high school students, their wide aeration was used in the spring and autumn periods of the year. For the first time a system of stationary irradiators with artificial sources of bactericidal ultraviolet radiation by BUB-30 lamps was developed and implemented directly in the training rooms used during the autumn-winter period during breaks after the first and last lessons. The results of the measures showed positive changes on the part of the leading correlates of the microclimate of the air environment. Total sowing of air by microorganisms improved in all seasons of the year, and during the winter period decreased by 1.8 times. Selected as a criterion for assessing the effectiveness of airspace optimization in educational facilities, the level of morbidity with temporary disability of schoolchildren during third year (р˂0.001) determined the presence of dynamic shifts of favorable content, indicating an increase in the level of adaptive resources of the organism of younger schoolchildren-lyceum pupils.
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