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Dust control effectiveness of drywall sanding tools.

Authors
Young-Corbett-DE; Nussbaum-MA
Source
J Occup Environ Hyg 2009 Jul; 6(7):385-389
NIOSHTIC No.
20043338
Abstract
In this laboratory study, four drywall sanding tools were evaluated in terms of dust generation rates in the respirable and thoracic size classes. In a repeated measures study design, 16 participants performed simulated drywall finishing tasks with each of four tools: (1) ventilated sander, (2) pole sander, (3) block sander, and (4) wet sponge. Dependent variables of interest were thoracic and respirable breathing zone dust concentrations. Analysis by Friedman's Test revealed that the ventilated drywall sanding tool produced significantly less dust, of both size classes, than did the other three tools. The pole and wet sanders produced significantly less dust of both size classes than did the block sander. The block sander, the most commonly used tool in drywall finishing operations, produced significantly more dust of both size classes than did the other three tools. When compared with the block sander, the other tools offer substantial dust reduction. The ventilated tool reduced respirable concentrations by 88% and thoracic concentrations by 85%. The pole sander reduced respirable concentrations by 58% and thoracic by 50%. The wet sander produced reductions of 60% and 47% in the respirable and thoracic classes, respectively. Wet sponge sanders and pole sanders are effective at reducing breathing-zone dust concentrations; however, based on its superior dust control effectiveness, the ventilated sander is the recommended tool for drywall finishing operations.
Keywords
Dust-control; Dust-particles; Dusts; Risk-factors; Exposure-levels; Construction-materials; Construction; Construction-industry; Pollutants; Respiration; Respirators; Respiratory-protection; Respiratory-protective-equipment; Ventilation-equipment; Statistical-analysis; Workers; Work-environment; Work-areas; Laboratories; Laboratory-testing; Tools; Author Keywords: construction work; drywall; dust; dust control; ventilated sander
Contact
Deborah E. Young-Corbett, Civil and Environmental Engineering, Myers-Lawson School of Construction, 310B Bishop Favrao Hall, Blacksburg, VA 24061
CODEN
JOEHA2
Publication Date
20090701
Document Type
Journal Article
Email Address
dyoung@vt.edu
Funding Type
Cooperative Agreement
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U19-OH-008308
Issue of Publication
7
ISSN
1545-9624
Source Name
Journal of Occupational and Environmental Hygiene
State
VA; NC
Performing Organization
Virginia Polytechnic Institute and State University
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