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Review, Summarization, and Evaluation of Literature to Support the Update and Revision of Criteria Documents X. Silica.

Authors
Anonymous
Source
NIOSH 1977 Mar:58-58
Link
NIOSHTIC No.
00123230
Abstract
Occupational exposure to silica (7631869) is reviewed. The current NIOSH dust count sampling method is compared with the respirable mass measurement method. Criticism of the NIOSH 50 micrograms per cubic meter standard is included. The analytical parameters for the three NIOSH methods of analysis, X-ray diffraction, infrared spectroscopy, and a wet colorimetric technique, are summarized. The three methods are compared for their ability to determine silica in respirable Georgia granite dust. Other analytical methods such as differential thermal analysis are discussed. The physiological effects of silica exposure as determined by epidemiological investigations and case studies in humans and laboratory experiments in animals are presented. The authors emphasize the need for adequate protection for sandblasters and those who work in the vicinity of sandblasting operations. They recommend that a less toxic blasting abrasive be developed.
Keywords
NIOSH-Contract; Contract-210-76-0167; Silicates; Mineral-dusts; Dust-counting; Dust-sampling; Dust-analysis; Air-sampling; Medical-research;
CAS No.
7631-86-9;
Publication Date
19770301
Funding Type
Contract;
Fiscal Year
1977
NTIS Accession No.
NTIS Price
Identifying No.
Contract-210-76-0167
Source Name
Syracuse Research Corporation, Center for Chemical Hazard Assessment, Syracuse, New York, NIOSH, Rockville, Md.
State
GA; NY;
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