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A comparison of exposures to refractory ceramic fibres over multiple work shifts.

Authors
Hall-GS; Rice-CH; Lockey-JE; Lemasters-GK; Gartside-PS
Source
Ann Occup Hyg 1997 Oct; 41(5):555-560
NIOSHTIC No.
00239424
Abstract
A study was conducted examining levels of exposure of refractory ceramic fiber workers to ceramic fibers. Dust zones were identified during a walk through survey, based on similar work tasks, materials, types of process and control technology, and identifiable group of workers. Time weighted average (TWA) exposures of randomly selected workers were calculated in different dust zones (fiber production, vacuum processes, and other) and during different workshifts at five facilities. Sampling was conducted by facility personnel for at least 360 minutes on each occasion. TWA exposures ranged from the limit of detection to 2.0 fibers/centimeter. Dust levels were not significantly variable across shifts using the entire data set. When analyzed by facility, geometric mean TWAs were significantly different between the first and third shifts at one facility. This finding could not be explained on the basis of job activities. The authors conclude that these findings support the use of a single exposure estimate for each dust zone group in each facility studied regardless of the shift worked.
Keywords
NIOSH-Publication; NIOSH-Grant; Training; Ceramic-materials; Occupational-exposure; Exposure-levels; Fibrous-dusts; Shift-work; Dust-sampling; Industrial-hygiene
Contact
Environmental Health University of Cincinnati 3223 Eden Avenue Cincinnati, OH 45267-0056
CODEN
AOHYA3
Publication Date
19971001
Document Type
Journal Article
Funding Amount
1935649.00
Funding Type
Grant
Fiscal Year
1998
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-T42-OH-07091
Issue of Publication
5
ISSN
0003-4878
Source Name
Annals of Occupational Hygiene
State
OH
Performing Organization
University of Cincinnati, Cincinnati, Ohio
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