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Potential significance of airborne fiber dimensions measured in the U.S. refractory ceramic fiber manufacturing industry.

Authors
Lentz-TJ; Rice-CH; Lockey-JE; Succop-PA; Lemasters-GK
Source
Am J Ind Med 1999 Aug; 36(2):286-298
NIOSHTIC No.
20030369
Abstract
To determine dimensions of airborne fibers in the U.S. refractory ceramic fiber (RCF) manufacturing industry, fibers collected through personal air sampling for employees at RCF manufacturing and processing operations have been measured. Data were derived from transmission electron microscopy analyses of 118 air samples collected over a 20-year period. Characteristics of sized fibers include: diameter measurements of <60; 0.19 to 1.0 micron, m of which 75% are less than 0.6 micron and length ranging from < 0.6 to > 20 micron, with 68% of fibers between 2.4 and 20 micron. Exposures in RCF manufacturing include airborne fibers with dimensions (diameter < 0.1-0.4 micron, length < 10 micron) historically associated with biological effects in pleural tissues. Air sampling data and a review of studies relating fiber size to pleural effects in animals and humans support the belief that information on fiber dimensions is essential for studies with synthetic vitreous fibers.
Keywords
Airborne-particles; Airborne-fibers; Ceramics-industry; Air-samples; Air-sampling; Occupational-exposure; Biological-effects; Microscopy; Synthetic-fibers
Contact
Education and Information Division, National Institute for Occupational Safety and Health, 4676 Columbia Parkway (MA C-32), Cincinnati, Ohio 45226, USA
CODEN
AJIMD8
Publication Date
19990801
Document Type
Journal Article
Email Address
tbl7@cdc.gov
Funding Type
Grant
Fiscal Year
1999
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-T42-CCT-510420
Issue of Publication
2
ISSN
0271-3586
NIOSH Division
EID
Source Name
American Journal of Industrial Medicine
State
OH
Performing Organization
University of Cincinnati, Department of Environmental Health, Cincinnati, Ohio
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