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The clinical and hygienic studies performed at the antimonite ore extraction mines in Yakutia revealed that the workers were exposed to high concentrations of polymetallic dusts, containing chromium dioxide, antimony, arsenic and their compounds. 11% of the workers exhibited dust bronchitis, changes in the blood and immune reactivity indices which were due(More)
Workers engaged into deep mining are subjected to occupational factors intensity of which is significantly higher than the allowable. Changing the mining enterprises involves deterioration of the working environment, increase in occupational morbidity. Features of the working environment, parameters of main occupational entities, recent social instability(More)
Manifold hygienic studies carried out at Tyrnaouz tungsten-molybdenum enterprise served as example to characterize work conditions, microclimate, chemical load, levels of dust, noise, vibration and radiation at modern concentration enterprises. The factors leading in intensity were dust load in air during preparation of ores processing (grinding, grist,(More)
Mechanization of underground works in mines has induced increased air content of dust and gas, a rise in noise and vibration, microclimate deterioration. The prevalence of occupational pulmonary diseases in mines has increased. Further efforts to improved the situation should be aimed at improvement of requirements to hygienic characteristics of the(More)
The article contains evaluation of physical and chemical properties of mine aerosol in mines using self-propelled diesel devices, information on the aerosol and exhaust gases components concentrations in the workplace air. Dispersed phase of the aerosol is presented by mineral and organic components, mineral and soot particles absorb gaseous exhaust(More)
The article covers analysis of work conditions for aluminium plant workers, through workplaces certification. The authors specified work condition classes according to the jeopardy degree. Number of workplaces with conditions having occupational hazards' MAC and MAL excess 10-fold and over (class 3.3 and 3.4) approached 30%. Materials on occupational(More)
Workers engaged into subsurface extraction of sand containing gold were proved to work in difficult conditions characterized by stable negative temperatures, high concentrations of dust, elevated levels of noise and vibration. The drill operators demonstrated extremely unfavorable changes of physiologic processes within a shift. Those changes were(More)
The article deals with evaluation of contemporary work conditions in mining enterprises, iron industry, aluminium production plants. Work conditions are classified according to hazard level and jeopardy in various occupations within the enterprises. Reports presented by Russian Mining Metallurgy Trade-union on occupational morbidity over 2002-2010 were(More)