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HHE Report No. HETA-93-0797-2624, Nicks Silica Company, Jackson, Tennessee.

Authors
Filios-M
Source
NIOSH 1997 Jan:33 pages
NIOSHTIC No.
00237085
Abstract
In response to a request from the Mine Safety and Health Administration, an investigation was begun into the prevalence of silicosis at specific ground silica (14808607) operations by conducting a medical evaluation of active and retired miners. This investigation centered around Nicks Silica Company (SIC-1446), Jackson, Tennessee. The study population included workers with 1 year or greater cumulative tenure subsequent to the opening of the mill in the grinding area or in areas downstream of the grinding process. A medical survey was conducted which included a questionnaire, spirometry, and a single view posterior/anterior (PA) chest X-ray. None of the 12 current and former workers participating in the survey had changes on their chest X-ray consistent with silicosis. One participant showed an abnormal spirometry pattern. Three reported chronic respiratory symptoms. All four participants with positive findings were current cigarette smokers. Because of the long latency usually associated with chronic nodular silicosis, the finding is not sufficient to conclude that current silica dust exposures are without any adverse effect. The author recommends that the medical monitoring program be modified to include classification of chest X-rays by a B-reader.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-93-0797-2624; Hazard-Confirmed; Region-4; Mining-industry; Milling-industry; Silica-dusts; Mineral-dusts; Chest-X-rays; Respiratory-system-disorders; Lung-disease;
CAS No.
14808-60-7;
Publication Date
19970101
Document Type
Hazard Evaluation and Technical Assistance;
Fiscal Year
1997
NTIS Accession No.
PB97-187355
NTIS Price
A04
Identifying No.
HETA-93-0797-2624
NIOSH Division
DSHEFS;
Priority Area
Respiratory-system-disorders
SIC Code
1446;
Source Name
Hazard Evaluations and Technical Assistance Branch, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. HETA-93-0797-2624, 33 pages, 31 references
State
TN; OH;
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