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Document ID (ISN)77036
CIS number 01-1155
ISSN - Serial title 1351-0711 - Occupational and Environmental Medicine
Year 1998
Convention or series no.
Author(s) Miller B.G., Hagen S., Love R.G., Soutar C.A., Cowie H.A., Kidd M.W., Robertson A.
Title Risk of silicosis in coalworkers exposed to unusual concentrations of respirable quartz
Bibliographic information Jan. 1998, Vol.55, No.1, p.52-58. Illus. 22 ref.
Abstract Chest radiographs were taken from 547 men who had worked at a colliery during the 1970s. Classifications of these films under the International Labour Organisation (ILO) 1980 scheme were related to existing data on individual men's exposures to respirable dust and quartz. 203 men (38%) showed progression of at least one profusion category on the 12-point scale, from the various 1970s surveys to the follow up in 1990-1. 158 men (29%) had a profusion of at least 1/0, and 47 (8.6%) of at least 2/1 at the follow up survey. Large opacities were recorded by at least two readers for 14 (2.6%) of the men. Profusion of small opacities was strongly related to exposures experienced in the 1970s, and more strongly for quartz than for the non-quartz fraction of the dust. Estimates of risk are presented over the range of quartz exposures experienced. The quartz exposures experienced by some men at this colliery have caused considerable progression of radiographic abnormalities since exposure ended.
Descriptors (primary) quartz; respirable dust; coal mining; hazard evaluation; silicosis
Descriptors (secondary) exposure evaluation; opacities; chest radiography; dose-response relationship
Document type D - Periodical articles
Country / State or ProvinceUnited Kingdom
Subject(s) Mines and quarries
Broad subject area(s) Chemical safety
Browse category(ies) Mining and quarrying
Risk evaluation
Pneumoconioses