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Professional risk factors in the working process of employees of the metallurgical enterprise

ISSN 2223-6775 Ukrainian journal of occupational health Vol.19, No 4, 2023

Professional risk factors in the working process of employees of the metallurgical enterprise

Sharavara L.P.1, Dmytrukha N.M.2, Andrusyshyna I.M.2
1Zaporizhzhia State Medical and Pharmaceutical University, Zaporizhzhia, Ukraine 2State Institution «Kundiiev Institute of Occupational Health of the National Academy of Medical Sciences of Ukraine», Kyiv, Ukraine

Full article (PDF): ENG / UKR

Introduction. In Ukraine, the metallurgical industry stands as a leading sector with over 0.5 million employed workers, of which more than 50% face exposure to harmful and hazardous factors in the industrial environment, predominantly industrial dust of diverse chemical composition.

Aim of the study. To conduct an assessment of professional risk factors in the labor activities of employees in a metallurgical enterprise.

Research materials and methods. The study delved into the working conditions at the metallurgical enterprise, encompassing the industrial microclimate, industrial noise, vibration, work difficulty and intensity, dust and chemical content in the workplace air, concentration of suspended particles in the fine and ultradisperse range, and their chemical composition.

The results. The working conditions of employees across all shops were categorized into the 4th class of the 3rd degree of harmfulness. The content of industrial dust in the РМ10 and РМ4 fine fractions at workers' workplaces showed statistically significant increases compared to the control group (p < 0.001). The ultradisperse range of suspended particles at the workplaces of the open hearth shop, blast furnace, and sintering workshops exhibited statistical differences in numerical concentration and surface area compared to the control group (≤0.05). The particles with sizes ranging from 48.7 nm to 86.6 nm had the highest specific gravity by number concentration. Chemical composition analysis revealed the presence of Aluminum, Calcium, Chromium, Manganese, Nickel, Phosphorus, and Silicon in the workplace air.

Conclusions. Employee working conditions are classified as the 3rd and 4th degrees of harmfulness, with unfavorable microclimate and industrial dust identified as the predominant risk factors. The processes of melting steel, cast iron, and agglomerate sintering contribute to the formation of suspended particles of various sizes, necessitating a comprehensive assessment of working conditions, including the calculation of occupational risks and studies on the negative impact on workers.

Keywords: working conditions, suspended particles of ultradisperse size, risk factors, metallurgical enterprise.


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