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Thoracic dust exposures on longwall and continuous mining sections.

Authors
Potts-JD; McCawley-MA; Jankowski-RA
Source
Appl Occup Environ Hyg 1990 Jul; 5(7):440-447
NIOSHTIC No.
00205209
Abstract
A study was conducted to determine whether compliance with the respirable dust standard equally limited the thoracic dust exposure of all miners. Measurements were taken of the size distributions of dusts on three longwall and three continuous mining sections. The results of the study indicated that compliance with the respirable dust standard would not equally limit the thoracic dust exposure of all mine workers. Assuming a respirable dust level of 2mg/m3, the thoracic dust level in the same area would range from 3 to 14mg/m3, depending on the location in the mine. Therefore, the authors conclude that respirable dust exposures may not be the best predictor of bronchitic symptoms and reduced pulmonary function. The authors recommend that the thoracic/respirable dust ratios determined for this study be supplemented with additional personal sampling to develop estimated thoracic/respirable dust ratios for specific underground occupations.
Keywords
NIOSH-Author; Air-quality-monitoring; Airborne-dusts; Coal-dust; Mining-industry; Underground-miners; Coal-miners; Lung-irritants; Respiratory-system-disorders; Worker-health
CODEN
AOEHE9
Publication Date
19900701
Document Type
Journal Article
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Issue of Publication
7
ISSN
1047-322X
Priority Area
Respiratory-system-disorders
Source Name
Applied Occupational and Environmental Hygiene
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