Silica exposure and silicosis among ontario hardrock miners: II. Exposure estimates
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Silica exposure and silicosis among Ontario hardrock miners: II. Exposure estimates.
An epidemiological investigation was carried out to determine the relationship between silicosis in hardrock miners in Ontario and cumulative exposure to silica (free crystalline silica--alpha quartz) dust. This second report describes a side-by-side air-sampling program used to derive a konimeter/gravimetric silica conversion curve. A total of 2,360 filter samples and 90,000 konimeter samples ...
متن کاملSilica exposure and silicosis among Ontario hardrock miners: I. Methodology.
An epidemiological investigation was undertaken to determine the relationship between silicosis in hardrock miners in Ontario and cumulative exposure to silica (crystalline silica--alpha quartz) dust. This first report describes the cohort, the method of classifying the radiographs, and the identification of a case of silicosis.
متن کاملSilica exposure and silicosis among Ontario hardrock miners: III. Analysis and risk estimates.
An epidemiological investigation was undertaken to determine the relationship between silicosis in hardrock miners in Ontario and cumulative exposure to silica (free crystalline silica--alpha quartz) dust. This report describes the analytic method and presents the risk estimates.
متن کاملExposure to silica and silicosis among tin miners in China: exposure-response analyses and risk assessment.
OBJECTIVES To investigate the risk of silicosis among tin miners and to investigate the relation between silicosis and cumulative exposure to dust (Chinese total dust and respirable crystalline silica dust). METHODS A cohort study of 3010 miners exposed to silica dust and employed for at least 1 year during 1960-5 in any of four Chinese tin mines was conducted. Historical total dust data from...
متن کاملSilica exposure, silicosis, and lung cancer: a mortality study of South African gold miners.
The effects of exposure to gold mining dust with a high concentration of free silica and tobacco smoking on mortality from lung cancer was assessed in a sample of 2209 white South African gold miners who started mining exposure during 1936-43, and were selected for a study of respiratory disorders in 1968-71 when they were aged 45-54. The mortality follow up was from 1968-71 to 30 December 1986...
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ژورنال
عنوان ژورنال: American Journal of Industrial Medicine
سال: 1989
ISSN: 0271-3586,1097-0274
DOI: 10.1002/ajim.4700160104