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Mortality of a cohort of U.S. workers employed in the crushed stone industry, 1940-1980.

Authors
Costello J; Castellan RM; Swecker GS; Kullman GJ
Source
Am J Ind Med 1995 May; 27(5):625-640
NIOSHTIC No.
00227439
Abstract
Respiratory disease mortality among workers employed at selected crushed stone mining and milling operations in the period 1940 through 1980 was evaluated. The sample group included 20 operations (nine limestone, six granite, and five traprock) and 5,807 workers; the final analyzed cohort consisted of 3,246 men with more than 1 year of tenure. Pneumoconiosis contributed to at least four deaths in this group; at least two of these deaths were apparently due to dust exposures in the crushed stone industry. Twenty workers had an underlying cause of death classified as pneumoconiosis and other respiratory diseases. Causes of death included chronic obstructive lung disease, chronic interstitial pneumonia, silicosis, lung abscess, and empyema. Mortality attributed to respiratory diseases was significantly increased overall, especially for a subcohort of crushed stone workers that processed granite. Overall standardized mortality rates (SMRs) were slightly elevated for lung cancer; there was, however, a significantly elevated lung cancer SMR for granite workers with at least 20 years latency. The authors conclude that the findings of this study are consistent with the hypothesis that exposure to respirable silica (14808607) dust is a risk factor for lung cancer in humans.
Keywords
NIOSH-Author; Occupational-exposure; Occupational-diseases; Occupational-respiratory-disease; Stone-processing; Silica-dusts; Lung-cancer; Mortality-data; Mining-industry; Respirable-dust; Industrial-medicine; Author Keywords: crushed stone workers; mortality; lung cancer; mesothelioma; chronic obstructive lung disease; pneumoconiosis; silicosis; granite; limestone; traprock
Contact
Joseph Costello, NIOSH, 1095 Willowdale Rd., Morgantown, WV 26505-2845
CODEN
AJIMD8
CAS No.
14808-60-7
Publication Date
19950501
Document Type
Journal Article
Fiscal Year
1995
NTIS Accession No.
NTIS Price
Issue of Publication
5
ISSN
0271-3586
NIOSH Division
DRDS
Source Name
American Journal of Industrial Medicine
State
WV
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