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HHE Report No. HETA-82-174-1298, Pacer Corporation, Custer, South Dakota.

Authors
Patil-A; Diffenbach-A
Source
NIOSH 1983 Apr:31 pages
Link
NIOSHTIC No.
00134182
Abstract
Environmental samples were analyzed for respirable crystalline silica (14808607) at Pacer Corporation (SIC-1493), Custer, South Dakota, in January and May 1982. The survey was requested by the Mine Safety and Health Administration, on behalf of the workers because of the incidence of silicosis among former employees. Raw materials, final products, settled dust, and breathing zone samples were analyzed for respirable crystalline silica. Medical tests including chest X-rays and breathing tests were performed and smoking history questionnaires were completed. Present and former workers were included. Quartz was the only form of crystalline silica identified. Respirable dust containing quartz exposures exceeded Mine Safety and Health Administration standards in 38 percent of the samples. The particles less than 10 microns in diameter comprised from 23 to 46 percent of the samples. Silicosis was found in four workers with less than 5 years of exposure. Two of these developed massive fibrosis. The prevalence rate of pneumoconiosis was 12 percent. The authors conclude that high concentrations of respirable quartz are the cause of accelerated silicosis in workers. It is recommended that engineering controls be instituted to reduce exposure.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; Hazard-Confirmed; Region-8; Disease-incidence; Employee-exposure; Dust-inhalation; Dust-exposure; HETA-82-174-1298;
CAS No.
14808-60-7;
Publication Date
19830401
Document Type
Field Studies; Hazard Evaluation and Technical Assistance
Fiscal Year
1983
NTIS Accession No.
PB84-210814
NTIS Price
A04
Identifying No.
HETA-82-174-1298
NIOSH Division
DSHEFS;
SIC Code
1493;
Source Name
Hazard Evaluations and Technical Assistance Branch, NIOSH, Cincinnati, Ohio, Report No. HETA-82-174-1298, 31 pages, 21 references
State
SD; OH;
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