Underground Mining
Mostrando 25-36 de 39 artigos, teses e dissertações.
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25. Ventilatory Capacity in Miners. A Five-year Follow-up Study
A five-year follow-up of ventilatory capacity in over 95% of a random sample of men living in the Rhondda Fach has been carried out. Miners and ex-miners with and without simple pneumoconiosis have been compared with non-mining controls, and the effect of ageing, mining, dust exposure, and tobacco smoking has been assessed. The change in Indirect Maximum Bre
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26. Lung Cancer in a Fluorspar Mining Community: I. Radiation, Dust, and Mortality Experience
Since 1952 two to three deaths from primary cancer of the lung have occurred regularly each year among the male inhabitants of the small fluorspar mining community of St. Lawrence, Newfoundland. These constituted 23 of the 51 deaths that occurred during the 10-year period 1952-61 among employees with one or more years of underground mining experience. A shif
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27. Morbidity of British coal miners in 1961-62
Liddell, F. D. K. (1973). Brit. J. industr. Med.,30, 1-14. Morbidity of British coal miners in 1961-62. The British coal mining population in 1961 is described, in terms of the 29 084men covered in a 5% sample census, by age, type of employment, coalfield, size of community, degree of mechanization, and other factors. Over a quarter of the men were in jobs n
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28. Skeletal lead-210 as an index of exposure to radon decay products in mining
ABSTRACT Exposure to radon-222 and its short-lived decay products in mines results in increased bone content of lead-210 in miners. Cumulative exposure is usually determined from air measurements underground. It may also be inferred from radiochemical measurements on bone samples. We describe how this is achieved, illustrate the degree of agreement between t
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29. Mutation rates at the glycophorin A and HPRT loci in uranium miners exposed to radon progeny.
OBJECTIVES--To find whether a relation exists between estimated levels of exposure to radon and its progeny and mutations in hypoxanthine phosphoribosyl transferase (HPRT) and glycophorin A in a cohort of former uranium miners. METHODS--A cohort study involving a sample of miners from the Radium Hill uranium mine in South Australia, which operated from 1952
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30. Cancer of the lung in iron ore (haematite) miners
Boyd, J. T., Doll, R., Faulds, J. S., and Leiper, J.(1970).Brit. J. industr. Med.,27, 97-105. Cancer of the lung in iron ore (haematite) miners. The mortality of Cumberland iron-ore miners has been studied by examining the death certificates of 5 811 men resident in two local authority areas (Ennerdale R.D. and Whitehaven M.B.) who died between 1948 and 1967
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31. Exercise capacity in coal workers' pneumoconiosis: an analysis using causal modelling.
Miners disabled from black lung disease (coal workers' pneumoconiosis, CWP) are entitled to disability benefits under United States federal and state laws. The determination of disability currently involves several scientific controversies. The Federal Department of Labor states that one second forced vital capacity (FEV1) is an important marker of disabilit
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32. Silicosis in surface coalmine drillers.
Surface coalminers are generally thought to be at minimal risk of developing pneumoconiosis. Biopsy-proved silicoproteinosis was found in a 34-year-old surface coalmine driller, and two of nine other drill crew members who worked for the same company had chest radiographic findings compatible with simple silicosis. Reanalysis of data from a previous United S
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33. Airway responsiveness and job selection: a study in coal miners and non-mining controls.
BACKGROUND--It has been suggested that health related job selection is a major cause of the healthy worker effect, and may result in inaccurate estimates of health risks of exposures in the working environment. Improved understanding of self selection, including the role of airway hyperresponsiveness, should improve accuracy in estimating occupational risks.
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34. Prevalence of occupational lung disease among Botswana men formerly employed in the South African mining industry.
OBJECTIVE: To determine whether previous health experiences affect the prevalence of occupational lung disease in a semirural Botswanan community where there is a long history of labour recruitment to South African mines. METHOD: A cross sectional prevalence study of 304 former miners examined according to a protocol including a questionnaire, chest radiogra
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35. Mortality in gold and coal miners in Western Australia with special reference to lung cancer.
Cohorts of 1974 gold miners and 213 coal miners in Western Australia surveyed for respiratory symptoms, smoking habits, occupational history and radiographic evidence of pneumoconiosis have been followed up for 13-14 years. Overall, neither group had a significantly higher mortality than expected from the experience of Western Australian men in general. Lung
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36. Mortality of middle aged white South African gold miners.
A cohort of 3971 white miners in South Africa, born between 1 January 1916 and 31 December 1930 who were alive on 1 January 1970 and currently working in the East Rand-Central Rand-West Rand mining areas, was followed up for nine years, when the 3426 survivors were aged from 48 to 62. Fifteen (0.4%) had been lost to view and 530 had died (13.4% of the 3956 w