The Mapping of Fine and Ultrafine Particle Concentrations in an Engine Machining and Assembly Facility

Details

• Personal Author:
  Evans DE ; Heitbrink, William A. ; Maynard AD ; Peters TM ; Slavin TJ
• Description:
  Aerosol mapping was used to assess particle number and mass concentration in an engine machining and assembly facility in the winter and spring. Number and mass concentration maps were constructed from data collected with two mobile sampling carts, each equipped with a condensation particle counter (10 nm < diameter < 1 mum) and an optical particle counter (300 nm < diameter < 20 mum). Number concentrations inside the facility ranged from 15 to 150 times greater than that outside the facility and were highly dependent on season. The greatest number concentration (>1 000 000 particles cm(-3)) occurred in winter in an area where mass concentration was low (<0.10 mg m(-3)). The increased number of particles was attributed to the exhaust of direct-fire, natural-gas burners used to heat the supply air. The greatest mass concentrations were found around metalworking operations that were poorly enclosed. The larger particles that dominated particle mass in this area were accompanied by ultrafine particles, probably generated through evaporation and subsequent condensation of metalworking fluid components. Repeat mapping events demonstrated that these ultrafine particles persist in workplace air over long time periods. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Pollutants, Occupational Manufacturing And Industrial Facilities Metals Metal Workers Occupational Health Particulate Matter Safety
• Keywords:
  Aerosol-particles Aerosol Mapping Airborne-particles Assembly-line-workers Author Keywords: Aerosol Machine-shop-workers Mass Concentration Metalworking Metalworking-fluids Metalworking-industry Nanoparticles Nanotechnology Number Concentration Particle Particulates Ultrafine

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• ISSN:
  0003-4878
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  District of Columbia ; Illinois ; Iowa ; Ohio ; OSHA Region 3 ; OSHA Region 5 ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  249-257
• Volume:
  50
• Issue:
  3
• NIOSHTIC Number:
  nn:20030037
• Citation:
  Ann Occup Hyg 2006 Apr; 50(3):249-257
• Contact Point Address:
  Thomas M. Peters, Department of Occupational and Environmental Health, University of Iowa, 102 IREH, 100 Oakdale Campus, Iowa City, IA 52242-5000, USA
• Email:
  thomas-m-peters@uiowa.edu
• Federal Fiscal Year:
  2006
• NORA Priority Area:
  Work Environment and Workforce: Emerging Technologies
• Peer Reviewed:
  True
• Source Full Name:
  Annals of Occupational Hygiene
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:24e9331dbc79b9613b61f27f4ae6191ee711dbf384e99594148cd8ab2e5bda10897f43448c524a132b12120606ed472eff5e817cfc318fe63ea538d7317b7937
• Download URL:
  https://stacks.cdc.gov/view/cdc/190892/cdc_190892_DS1.pdf
• File Type:
  [PDF - 280.84 KB ]