In-Depth Field Evaluation: Dust-Control Technology for Asphalt Pavement Milling at South Dakota Highway 79 resurfacing project, Border States Paving and Industrial Builders, contractors, Buffalo Gap, South Dakota, August 15 through 17, 2006

Details

• Alternative Title:
  In-Depth Field Evaluation…Dust-Control Technology for Asphalt Pavement Milling at South Dakota Highway 79 resurfacing project, Border States Paving and Industrial Builders, contractors, Buffalo Gap, South Dakota, August 15 through 17, 2006
• Personal Author:
  Blade, Leo M. ; Chekan, Gregory J. ; Colinet, Jay F. ; Garcia, Alberto ; Shulman, Stanley A.
• Corporate Authors:
  National Institute for Occupational Safety and Health. Division of Applied Research and Technology
• Description:
  As part of an ongoing study to evaluate the effectiveness of dust-control systems on pavement-milling machines, a field survey was performed during milling of asphalt on a rural four-lane divided highway. The objective of this survey was to estimate the reduction in respirable dust emissions and workers' exposures that could be achieved through the use of higher water flow rates through the milling machine's water spray system. 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 this typical milling job. Increasing the total water flow to the water-spray nozzles from about 12.5 gallons per minute (gpm) to about 18.8 gpm resulted in overall reductions in measured respirable dust concentrations at area air-monitoring locations around the machine. The average overall reduction based on the results of the time-integrated air sampling method used was 41 %, while that based on the mean results of the real-time data-logging instrumentation was 53%
  
  both of these reductions were statistically significant at the 95% confidence level. In contrast, an examination of short-period subset data from the data-logging instruments (assembled from selected portions of the data sets generated closest together in time and space) revealed an average reduction of 14% that was not statistically significant. Overall, the results varied by location, with the greatest reductions occurring on the right side of the machine. Personal breathing-zone exposures to crystalline silica were below analytical limits of detection.
  
  
• Subjects:
  Construction Industry Dust Engineering Manufacturing And Industrial Facilities Occupational Health Safety Silicon Dioxide
• Keywords:
  Concretes Construction Control-technology Dust-control Engineering-controls Machine-operation Machine-operators OSHA Region 8 Respirable-dust Road-construction Road-surfacing Silica-dusts

  More +
• Series:
  Engineering and Physical Hazards Survey Reports
• DOI:
  https://doi.org/10.26616/NIOSHEPHB28214a
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Name as Subject:
  Border States Paving and Industrial Builders
• Genre:
  Field Study
• Place as Subject:
  South Dakota ; Buffalo Gap (SD) ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology ; EPHB - Engineering and Physical Hazards Branch
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-28
• NIOSHTIC Number:
  nn:20036131
• NTIS Accession Number:
  PB2010-103867
• 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 282-14a, 2009 Sep ; :1-28
• CAS Registry Number:
  Quartz (SiO2) (CAS RN 14808-60-7) ; Asphalt (CAS RN 8052-42-4)
• Federal Fiscal Year:
  2009
• NORA Priority Area:
  Manufacturing
• Peer Reviewed:
  False
• NAICS and SIC Codes:
  1611 - Highway and street construction - (SIC) ; 237310 - Highway, Street, and Bridge Construction - (NAICS)
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:85acd7b94a29c42a177f6845ec0df8cff8f7fd968a03b80ff2aa0d731bb8a92d42d7c106bfa866d9d1816f72c820a2b6a46307dbef69e3344613bf10422def06
• Download URL:
  https://stacks.cdc.gov/view/cdc/174937/cdc_174937_DS1.pdf
• File Type:
  [PDF - 401.92 KB ]