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Control of respirable dust and crystalline silica from breaking concrete with a jackhammer.

Authors
Echt-A; Sieber-K; Jones-E; Schill-D; Lefkowitz-D; Sugar-J; Hoffner-K
Source
Appl Occup Environ Hyg 2003 Jul; 18(7):491-495
NIOSHTIC No.
20023183
Abstract
The Engineering and Physical Hazards Branch (EPHB) of the National Institute for Occupational Safety and Health (NIOSH) has been given the lead within NIOSH to study and develop engineering controls and assess their impact on reducing occupational illness. The objective of each of these studies has been to evaluate and document control techniques and to determine their effectiveness in reducing potential health hazards in a specific industry or for a specific process. The goal of the project reported in this article was to quantify the exposure reduction that could be achieved through the use of a water-spray attachment and two different tool-mounted local exhaust ventilation shrouds during concrete pavement breaking with jackhammers. In this case, the water-spray attachment consisted of a spray nozzle (of the type used with oil-burning furnaces) and associated hoses and fittings. Water was supplied by a pressurized tank mounted on the air-compressor trailer. The local exhaust ventilation (LEV) included an off-the-shelf shroud typically used with hand-held rock drills and a custom-made shroud. The same dust collector (one sold for use with the rock drill hood) was used for both LEV attachments.
Keywords
Construction; Control-equipment; Control-technology; Engineering-controls; Environmental-hazards; Exhaust-ventilation; Exposure-levels; Respirable-dust; Silica-dusts; Concretes; Construction-workers; Tools; Jack-hammers; Ventilation-hoods; Equipment-design; Dust-control-equipment; Dust-exposure; Occupational-exposure
Contact
Alan Echt, National Institute for Occupational Safety and Health, Engineering and Physical Hazards Branch, 4676 Columbia Parkway, Cincinnati, OH 45226
CODEN
AOEHE9
CAS No.
14808-60-7
Publication Date
20030701
Document Type
Journal Article
Email Address
aecht@cdc.gov
Editors
Tharr-D
Funding Type
Construction; Cooperative Agreement
Fiscal Year
2003
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U60-OH-008338; Cooperative-Agreement-Number-U60-OH-CCU-208160
Issue of Publication
7
ISSN
1047-322X
NIOSH Division
DSHEFS; DART
Priority Area
Research Tools and Approaches: Control Technology and Personal Protective Equipment
Source Name
Applied Occupational and Environmental Hygiene
State
NJ; OH
Performing Organization
New Jersey Department of Health and Senior Services
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