The article contains results concerning spectral analysis of biologic materials (blood and hair) for heavy metals content. These results helped to reveal health risk factors for workers engaged into chromium ores extraction and for nearby residents.
The authors represented integral evaluation of sanitary and epidemiologic well-being of people residing in coal miner towns. This evaluation plays an important role in formation of general including children's, occupational and infectious morbidity.
Ores extraction in Tyrnaouz tungsten-molybdenum pool is conducted in specific climate and geologic conditions that considerably influence aimbient dust levels in open pit and mining workplaces, levels of exhaust, radioactive and explosive gases and lower those levels to the MACs or below. With regular mining equipment used, noise and vibration levels are the same as at other open pits. The stated occupational hazards could induce vibration disease and deafness in the workers.
The studies covered public health state in vicinity of concentration enterprise being built in Far North, with selecting a cohort of workers extracting diamonds in Yakutia, conducting a primary standardized health screening in accordance with WHO program. The public health state is characterized in connection with ecologic, social and economic circumstances. The authors necessitate complex evaluation of influence caused by industrial enterprises on health of workers and general population.
Studies covered incidence of coronary heart disease, its risk factors and features of constitutional types among Kouzbass coal miners suffering from anthracosilicosis and chronic dust bronchitis. Findings are reliably higher incidence of coronary heart disease among coal miners having lung diseases caused by dust. Coronary heart disease among the miners with anthracosilicosis is favored by arterial hypertension, overweight and hypersthenic constitutional type, that among those with dust bronchitis is favored only by overweight.
Using Doppler technologies, the authors studied blood flow in carotid and vertebral basillary systems of brain circulation, in orbital and central retinal arteries among workers of major occupations in ore mining and processing enterprise, who are subjected to occupational hazards complex. Workers with length of service over 20 years appeared to have stenosis and occlusion of medial cerebral artery and basillary artery.
The incidence of ischemic heart disease (IHD) and risk factors of its genesis have been studied in 380 miners of a control group non-exposed to industrial vibration. Constitution type and a number of phenotypic signs have been determined for all examined workers with hemostatic indices defined in 60 miners before and after the performance of vibrational load test. High incidence of IHD, arterial hypertension and hyperholesterolemia have been detected in the miners working with vibration instruments and hemostatic disorders predisposing to ischemic heart disease have been revealed. In the miners of vibrodangerous occupations suffering from ischemic heart disease, hypersthenic constitution type determined by Rees-Eysenc index less than 92.2 and the height below 170 cm was found to occur more frequently.
Work conditions on open-cast minest of Kuzbass include complex of unfavorable natural climate, mining technical occupational factors (microclimate, industrial noise, vibration, aerosols, toxic chemicals, hardiness and intensity of work). According to those occupational factors, the authors calculated risks of morbidity and safe length of service.
The authors determined concentration of asbestos fibers in lung tissue samples obtained in hospital of Asbestos town in Sverdlovsk region. The samples were taken from 47 individuals who died with various causes. of Workers engaged into extraction and beneficiation of chrysotile asbestos at Bazhenovsky field, into production of chrysotile asbestos goods and those who reside in close proximity to the enterprises demonstrated no differences in general content of fibrous particles and of chrysotile asbestos fibers in lung tissue, if compared to workers of the same enterprises and industrial regions dwellers of Canada (being second, after Russia, for total chrysotile asbestos production). The study proved concentrations of amphibole asbestos fibers to be one order lower than those in Canada.