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Engineering controls for selected silica and dust exposures in the construction industry - a review.

Authors
Flynn-MR; Susi-P
Source
Appl Occup Environ Hyg 2003 Apr; 18(4):268-277
NIOSHTIC No.
20029512
Abstract
This literature review summarizes engineering control technology research for dust and silica exposures associated with selected tasks in the construction industry. Exposure to crystalline silica can cause silicosis and lung fibrosis, and evidence now links it with lung cancer. Of over 30 references identified and reviewed, 16 were particularly significant in providing data and analyses capable of documenting the efficacy of various engineering controls. These reports include information on generation rates and worker exposures to silica and dust during four different tasks: cutting brick and concrete block, grinding mortar from between bricks, drilling, and grinding concrete surfaces. The major controls are wet methods and local exhaust ventilation. The studies suggest that while the methods provide substantial exposure reductions, they may not reduce levels below the current ACGIH threshold limit value (TLV) of 0.05 mg/m(3) for respirable quartz. Although further research on controls for these operations is indicated, it is clear that effective methods exist for significant exposure reduction.
Keywords
Engineering-controls; Silica-dusts; Silicates; Dusts; Dust-exposure; Construction-industry; Construction-workers; Silicosis; Lung-fibrosis; Lung-cancer; Pulmonary-system-disorders; Respiratory-system-disorders; Occupational-exposure; Quartz-dust
CODEN
AOEHE9
CAS No.
14808-60-7
Publication Date
20030401
Document Type
Journal Article
Funding Amount
6544463
Funding Type
Cooperative Agreement; Construction
Fiscal Year
2003
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U60-CCU-317202
Issue of Publication
4
ISSN
1047-322X
Priority Area
Construction
Source Name
Applied Occupational and Environmental Hygiene
State
MD; NC
Performing Organization
The Center to Protect Workers' Rights
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