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In-Depth Survey of Dust Control Technology for Asphalt Milling at Northeast Asphalt, Inc., US Route 22 and SR 64 Projects, Wisconsin
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2007/01/01
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Description:A study was performed to evaluate the effectiveness of water spray controls for a cold-milling machine. The objective of this study was to quantify the exposure reduction that could be achieved through the use of higher water flow rates during pavement milling. The effectiveness of the dust controls examined in this study was evaluated by measuring the reduction in the respirable dust and respirable quartz exposures in personal and area samples collected during a typical milling job. Increasing the water flow to the cutter drum spray bars from about 5 gpm to about 9 gpm and from approximately 2 gpm to around 3 gpm at the conveyor sprays resulted in an overall reduction in respirable dust emissions of about 50%, and nearly as great a reduction in respirable quartz emissions. Those results varied by location, with the greatest reduction occurring at the conveyor sampling location.
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Pages in Document:1-32
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NIOSHTIC Number:nn:20031469
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NTIS Accession Number:PB2007-107223
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Citation:Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, EPHB 282-12a, 2007 Jan;:1-32;
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Federal Fiscal Year:2007
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Peer Reviewed:False
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[PDF-416.07 KB]