Characterization of Work Practices and Ventilation Techniques in Shipyard Confined Space Welding

Details

• Personal Author:
  Walls JR
• Description:
  Despite abundant evidence for the adverse health effects associated with welding fume, shipyard welders continue to have exposures that routinely exceed safe limits. Welding in shipyards can be particularly hazardous due dynamic conditions and work in enclosed and confined spaces. Currently, there are no specific ventilation guidelines available to shipyard welders, beyond general regulatory requirements for local exhaust and general dilution air flow rates. In this study, general ventilation guidelines were developed for inclusion in a training intervention. Using an observational tool based on those guidelines, a baseline characterization of the work practices and use of ventilation in enclosed and confined space welding tasks was performed at a Seattle shipyard. To assess ventilation effectiveness, a scoring system was developed to compare actual and recommended ventilation practices. Comparing ventilation techniques and estimated exposure suggests that adoption of the intervention guidelines reduces the potential for welding fume exposure. Additionally, an inter-observer assessment based on side-by-side field measurements shows good agreement for the observational behavior tool, establishing the method as a reliable way to detect a change in ventilation-related behavior post-intervention. [Description provided by NIOSH]
• Subjects:
  Behavior Confined Spaces Occupational Health Safety Ships Staff Development Ventilation Welding
• Keywords:
  Confined Spaces Intervention Effectiveness Shipbuilding Industry Shipyard Workers Training Welders Welding Fumes
• Publisher:
  University of Washington
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Thesis
• Place as Subject:
  OSHA Region 10 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-110
• NIOSHTIC Number:
  nn:20054809
• Citation:
  Seattle, WA: University of Washington, 2013 Feb; :1-110
• Federal Fiscal Year:
  2013
• NORA Priority Area:
  Manufacturing
• Performing Organization:
  University of Washington, Seattle
• Peer Reviewed:
  False
• Start Date:
  20100901
• Source Full Name:
  Characterization of work practices and ventilation techniques in shipyard confined space welding
• End Date:
  20140831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:df741f08495fbd5517d8363a2453b007d8ee815f208099b11a8c705511b9f1912362c44f702ff98cefebb2490ff4184996449db9191fb97b6bca0f3ed41a541a
• Download URL:
  https://stacks.cdc.gov/view/cdc/217238/cdc_217238_DS1.pdf
• File Type:
  [PDF - 2.39 MB ]