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Walk-Through Survey Report No. CT-147-12a: Control Technology For Asbestos Removal Industry At James Monroe Elementary School, Norfolk, Virginia.

Authors
Hollett-BA
Source
NIOSH 1985 Mar:10 pages
Link
NIOSHTIC No.
00148160
Abstract
A walk through survey of control technology for reducing exposure during asbestos (1332214) removal (SIC-1799) at James Monroe Elementary School, Norfolk, Virginia was conducted in July, 1984. The later stages of asbestos removal from the boiler room equipment were observed. Engineering controls consisted of using the containment barrier control method recommended by the Environmental Protection Agency guidelines for asbestos removal and maintaining the containment area under negative pressure. Magnehelic gauges, however, were not able to detect a steady 0.2 inch negative pressure across the barrier. Wet removal procedures were used and water was applied liberally. Interior and exterior monitoring was performed by analyzing samples obtained by battery powered sampling pumps by phase contrast and scanning electron microscopy. Workers wore disposable coveralls and half/face cartridge respirators. Walk through decontamination showers were located at the entrance to the enclosure. The author notes that at the time of the survey, the negative air control system apparently was not working at its peak efficiency. He recommends that more emphasis be placed on maintaining this equipment. An indepth survey of the contractor is not warranted as removal technologies of current interest (glove bags, injection/wetting, local ventilation) were not used.
Keywords
NIOSH-Author; NIOSH-Survey; Control-technology; Construction-industry; Airborne-fibers; Respirable-dust; Insulation-workers; Field-Study; Insulation-materials; Industrial-dusts; Ventilation-equipment; Industrial-ventilation; Region-3; CT-147-12a;
CAS No.
1332-21-4;
Publication Date
19850301
Document Type
Field Studies; Control Technology
Fiscal Year
1985
NTIS Accession No.
PB85-234342
NTIS Price
A02
Identifying No.
CT-147-12a
NIOSH Division
DPSE;
Priority Area
Control Technology and Personal Protective Equipment; Research Tools and Approaches; Control-technology;
SIC Code
1799;
Source Name
Division of Physical Sciences and Engineering, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. CT-147-12a, 10 pages, 3 references
State
VA; OH;
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