منابع مشابه
Hyperinflation of the lungs in coal miners.
The residual volume and total lung capacity of 1,455 working Pennsylvania coal miners were determined as part of a larger epidemiological study. The age of the subjects varied between 18 and 65 with a mean of 48-7 years. The total lung capacity of the subjects was determined from standard posteroanterior and lateral chest films while the forced vital capacity was determined by spirometry (O'She...
متن کاملFurther studies of the dust in lungs of coal-miners.
In a previous communication (King and Nagelschmidt, 1945), analytical data were given for the amount and composition of the dust found in the lungs of 54 coalworkers from South Wales. Coal, total silica, quartz, mica, and kaolin were determined as the percentages of dried lung tissue, and the results were related to type of work and degree of pathology. The main findings were the following: (1)...
متن کاملThe mechanism of dispersion of coal particles in the lungs of miners.
Coal particles inhaled by miners in the course of their work, especially those of 2 microns in diameter and less, are carried as far as the alveoli. Particles which have reached the alveoli and become attached to their surface are phagocytosed by the alveolar cells, and in this way dust cells are formed. This is the first stage in the migration of coal-dust, of which the second is its depositio...
متن کاملPneumoconiosis in coal miners.
IRVINE, L. G., SIMSON, F. W., and STRACHAN, A. S. (1930), Proc. Intern. Conf. on Silicosis in Johannesburg, I.L.O. Studies and Reports, Series F. (Industrial Hygiene), No. I3, p. 259. JONES, W. R. (I933), ,. of Hyg., 33, 307. KETTLE, E. H. (I932), Y. Path. and Bat., 35, 395. KETTLE, E. H. (I934), Ibid., 38, 20o. KING, E. J. (I945), M.R.C. Special Report Series, No. 250, p. 73. KING, E. J. (I947...
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ژورنال
عنوان ژورنال: BMJ
سال: 1967
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.3.5567.737-b