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Silicosis.

Authors
Parker-JE
Source
Conn's current therapy 1998 Dec; :230-232
Link
NIOSHTIC No.
20000160
Abstract
Silicosis is a fibrotic disease of the lungs caused by the inhalation of, retention of, and pulmonary reaction to crystalline silica. Despite extensive knowledge Abou the cause of this pneumoconiosis (respiratory exposures to silica-containing dusts), this serious and potentially fatal occupational lung disease is tragically still seen even today, in the last part of this century in the United States and throughout the world. Silica, or silicon dioxide, is the predominant component of the earth's crust. The three important crystalline forms of silica are quartz, tridymite, and cristobalite. These forms are also called free silica to distinguish them from the silicates. The silica content in different rock formations, such as sandstone, granite, and slate, varies from 20% to nearly 100%. Occupational exposure to silica particles of respirable size (0.5 to 5 micrometers) is associated with mining, quarrying, drilling, and tunneling operations. Silica exposure is also a potential hazard to sandblasters, stonecutters, and pottery, foundry, ground silica, and refractory workers. The national or worldwide prevalence of silicosis is unknown, but more than 2 million workers in the United States alone are employed in trades at risk for the development of silicosis; in the developing world, cumulative estimates exceed 1 million cases of the disease
Keywords
Silicosis; Lung-disease; Occupational-exposure; Disease-prevention; Risk-factors; Respirators; Respiratory-protection;
Contact
National Institute for Occupational Safety and Health, Division of Respiratory Disease Studies, Morgantown, WV 26505
CAS No.
14808607; 14464461; 15468323; 7631869;
Publication Date
19981201
Editors
Rakel-RE
Fiscal Year
1999
NTIS Accession No.
NTIS Price
NIOSH Division
DRDS;
Priority Area
Asthma and Chronic Obstructive Pulmonary Disease; Disease and Injury;
Source Name
Conn's current therapy 1998
State
WV;
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