ACCOUNT OF JOINT EFFECT OF THE COMPLEX OF HARMFUL FACTORS AND ANALYSIS OF THE INFLUENCE OF PRODUCTION FACTOR OF CHEMICAL NATURE ON THE LEVEL OF PROFESSIONAL RISK

Harmful working conditions entail a consistently high level of occupational and production-related morbidity. In work with the help of correlation-regression analysis, the relationships between working conditions and the incidence rate for the personnel of the blast furnace shop of the metallurgical plant were studied and the assessment of the influence of production factor of chemical nature on the level of occupational risk was made. The staff of the blast-furnace shop operates a whole range of harmful factors, which individually cannot exceed normative values, but in combination with each other can lead to unfavorable conditions. Therefore, it is necessary to be able to assess the effect of a multitude of harmful factors on the morbidity and health of personnel. Based on the analysis of the working conditions of the blast furnace, a correlation-regression analysis of morbidity was performed depending on the characteristics of working conditions. This technique allows to convert the qualitative assessment of the combined effect into quantitative. In the work two methods for definition of professional risk of the personnel are used: standard (on the directing document 2.2.1766-03) and method of an integral estimation of working conditions taking into account combined action of a complex of harmful production factors. According to the results of the study, it can be concluded that the application of a technique that takes into account the combined effect of harmful production factors allows to assess more reliably (in comparison with the standard methodology) the level of occupational risks and the necessary management decisions to reduce it and to improve the working conditions. A  comparative analysis of the incidence of morbidity from harmful production factors with regard to the chemical factor and without it was carried out. Based on the data of correlation-regression analysis, it is proved that the chemical factor have a direct impact on the level of production-related morbidity.The conducted study confirms that a quantitative assessment of the contribution of a certain harmful production factor to a particular type of disease makes it possible to identify trends in improving the working conditions and reducing the risk of occupational and production-related morbidity at mining and metallurgical complex enterprises.

operation conditions, professional risk, disease of personal, chemical factors

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