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In-Depth Survey Report: Control Technology for Asbestos Removal at Washburn Elementary School, Cincinnati, Ohio, Report No. CT-147-19A.

Authors
Hollett-BA; Caplan-PE; Cooper-TC; Froehlich-PA
Source
NIOSH 1987 Jun:48 pages
Link
NIOSHTIC No.
00175432
Abstract
The effectiveness of the glove bag control method to prevent exposure to asbestos (1332214) during removal of asbestos pipe lagging from the Washburn Elementary School (SIC-1799) in Cincinnati, Ohio, was evaluated. During this work, the method appeared to function well in controlling worker exposures to asbestos fibers. It is recommended that workers use respiratory protection in any glove bag work due to possible leakage. During removal operations, asbestos fiber concentrations rose from a preremoval level of 0.002 fibers per cubic centimeter (f/cc) to limited experience with the glove bag technique; the authors suggest that this is common for individuals required to use this method. The authors conclude that a secondary containment system should be used as an adjunct to the glove bag treatment, such as negative air barriers. Following initial cleanup of the room, there were still higher asbestos levels than had been recorded prior to beginning the task. Twelve samples taken by nonaggressive methods were below the 10,000 fibers per cubic meter Environmental Protection Agency guideline. Of 12 samples taken by aggressive sampling, seven were above this limit. Several recommendations are made to improve glove bag efficacy, including improved work practices, improved wetting of lagging before removal using an injection technique, and use of glove bags supplied with negative air.
Keywords
NIOSH-Author; NIOSH-Survey; Field-Study; CT-147-19A; Region-5; Asbestos-workers; Asbestos-products; Work-practices; Exposure-levels; Airborne-fibers; Fibrous-dusts; Dust-control; Dust-inhalation; Asbestos-fibers; Personal-protective-equipment;
CAS No.
1332-21-4;
Publication Date
19870601
Document Type
Field Studies; Control Technology
Fiscal Year
1987
NTIS Accession No.
PB88-163191
NTIS Price
A04
Identifying No.
CT-147-19A
NIOSH Division
DPSE;
Priority Area
Control Technology and Personal Protective Equipment; Research Tools and Approaches;
SIC Code
1799;
Source Name
Engineering Control Technology Branch, Division of Physical Sciences and Engineering, NIOSH, Cincinnati, Ohio, Report No. CT-147-19A, 48 pages, 13 references
State
OH;
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