Nesterenko S. Labor safety at sites adjacent to the enterprises with high noise levels

Subject of inquiry is the processes of noise propagation in the surrounding territory from the noisy companies. The aim of the thesis: reduction of noise level at the sites adjacent to noisy businesses due to the forecast of noise pollution and development of protective measures at the design stage and during operation. Research methods: theoretical and experimental studies of noise propagation and its effects on workers using the standard and developed by the author of research methods; mathematical and physical modeling of noise propagation from sources of radiation; in-situ studies using standard methodologies and programs. Theoretical and practical results: conducted research and justifies the choice of research methods of measuring noise of industrial enterprises and its distribution in the surrounding area; developed and noise maps of jbk m enterprises of Kharkiv; implementation of the results of research on production. The scientific novelty of the conducted research and justifies the choice of research methods of measuring noise of industrial enterprises and its distribution to nearby areas; first developed a mathematical model to determine the noise levels from industrial facilities in two-dimensional space and use in engineering calculations when designing a sanitary-protective zones for noise factor; defined and scientifically substantiated the relationship between the area of the construction industry, their production infrastructure and acoustic characteristics; the dependences of the economic damage of noise on residential areas adjacent to the enterprises of the construction industry, as a function of production capacity, the relative orientation of the noise source and the protected object. Level of implementation: developed a 2D computer model of the industrial enterprises for the mathematical modeling of its external noise, which allows for the correlation of results obtained by field measurements and mathematical modelling; implementation of the results obtained in the thesis at OOO "ZHBK-5" "Method of determining economic damage from noise pollution of areas adjacent to industrial enterprises", "the procedure of mapping of noise from enterprises on production of SSB" helped to reduce the noise level in the surrounding territories through the adoption of protective means and to transfer jobs from the classes of noise 75, 70 and 65 dBA in noise classes of 70, 65 and 60 dBA. Expected annual economic effect from the use of sound proofing made: 57288 UAH for residents of adjacent territories; 58684 UAH for workers in nearby businesses at workplaces; 57700 UAH for workers Zavod ZHBK № 15 in the city. Range of application: labour protection and life safety.