Ultrafine industrial aerosol as a risk factor for the health of smelting shop workers at a machine-building enterprise

Authors

DOI:

https://doi.org/10.14739/2310-1210.2024.1.290499

Keywords:

nanoparticles, suspended particles of ultrafine aerosol, working environment, occupational exposure, workplace studies

Abstract

Aim. To evaluate the amount and physicochemical properties of ultrafine industrial aerosol (UIA) in the work zone air (WZA) of smelting shop workers at a machine-building enterprise during various technological processes (melting, welding, and metal machining).

Materials and methods. The physical properties of UIA particles were evaluated with NanoScan 3910 scanning spectrometer: the number of particles (number/cm3), particle surface volume (nm3/cm3), particle surface area (nm2/cm2), and nanoparticle mass concentration (μg/cm3) in the WZA of a furnace operator (n = 416), a welder (n = 315), a cutter (n = 286), a grinder (n = 78), and workers of the control group (n = 315). The chemical composition of the air samples was determined by inductively coupled plasma optical emission spectrometry (ICP-OES) using an Optima 2100 DV device.

Results. It has been found that the highest concentration of UIA nanoparticles was recorded during metal melting at the workplaces (WP) of furnace operators (4.28 × 104 to 2.41 × 105 particles/cm3) and welders (3.01 × 104 to 3.34 × 105 particles/cm3). During mechanical metal processing, a much smaller number of nanoparticles was produced (for grinders, the number varied from 9.81 × 104 to 1.44 × 105 particles/cm3; for cutters, it varied from 2.71 × 104 to 1.94 × 105 particles/cm3). Indicators of surface area, surface volume and mass concentration at the WPs of furnace operators, welders, grinders and cutters exceeded the corresponding indicators of the control group for almost all sizes of suspended particles with statistically significant differences (p ≤ 0.05). It has been estimated that such metals as Al, Cu, Mg, Mo, Fe, and Ni were present in the workers’ WZA but their content did not exceed the current maximum permissible concentrations.

Conclusions. The presence of suspended particles of UIA with a maximum concentration in the range from 20 nm to 70 nm has been confirmed in the WZA during melting, welding of metals and machining. Indicators of concentration, surface area, surface volume, and mass concentration at the workplaces of melting shop workers at the machine-building enterprise significantly exceeded the corresponding indicators in the control group without dust formation processes, showing statistically significant differences (p ≤ 0.05). The evidence of metals in the WZA has suggested their presence in the form of nanoparticles, which are more active and dangerous, thus increasing the risk of their adverse effects on the workers.

Ультрадисперсний

Author Biographies

L. P. Sharavara, Zaporizhzhia State Medical and Pharmaceutical University, Ukraine

MD, PhD, Associate Professor of the Department of General Hygiene, Medical Ecology and Preventive Medicine

N. M. Dmytrukha, SI “Kundiiev Institute of Occupational Health of the National Academy of Medical Sciences of Ukraine”, Kyiv

PhD, DSc, Senior Researcher, Head of the Laboratory of Industrial Toxicology and Occupational Health in the Use of Chemical Substances

I. M. Andrusyshyna, SI “Kundiiev Institute of Occupational Health of the National Academy of Medical Sciences of Ukraine”, Kyiv

PhD, DSc, Senior Researcher, Head of the Sector for the Study of Microelements

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Published

2024-02-05

How to Cite

1.
Sharavara LP, Dmytrukha NM, Andrusyshyna IM. Ultrafine industrial aerosol as a risk factor for the health of smelting shop workers at a machine-building enterprise. Zaporozhye Medical Journal [Internet]. 2024Feb.5 [cited 2024Dec.22];26(1):44-52. Available from: http://zmj.zsmu.edu.ua/article/view/290499

Issue

Vol. 26 No. 1 (2024): Zaporozhye medical journal

Section

Original research

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