Asbestos Exposure from the Overhaul of a Pratt & Whitney R2800 Engine

Details

• Personal Author:
  Mlynarek SP ; Van Orden DR
• Description:
  This study assessed the asbestos exposures of airplane piston engine mechanics while performing overhaul work on a Pratt & Whitney R2800 radial engine, with tools and practices in use since the time these engines were manufactured. Approximately 40% of the bulk samples collected during this test were found to contain chrysotile. Air samples were collected during the overhaul and were analyzed by phase contrast microscopy (PCM) and transmission electron microscopy (TEM). The average worker exposure during disassembly was 0.0272f/ml (PCM) and ranged from 0.0013 to 0.1240f/ml (PCM) during an average sample collection time of 188min. The average worker exposure during reassembly was 0.0198f/ml (PCM) and ranged from 0.0055 to 0.0913f/ml (PCM) during an average sample collection time of 222min. Only one worker sample (during reassembly) was found to contain asbestos at a concentration of 0.0012f/ml (PCME). Similar results should be found in other aircraft piston engines that use metal clad and non-friable asbestos gaskets, which are the current standard in aircraft piston engines. [Description provided by NIOSH]
• Subjects:
  Aerosols Aircraft Air Pollutants, Occupational Asbestos Environmental Exposure Inorganic Chemicals Occupational Health Particulate Matter Risk Assessment Risk Factors Safety

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• Keywords:
  Aerosol Particles Airborne Fibers Aircraft Engines Author Keywords: Piston Engine Electron Microscopy Exposure Exposure Levels Fibers Jet Engine Fuels Mechanic Mechanics Microscopy Overhaul Radial Engine Risk Factors Sampling Statistical Analysis Tools

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• ISSN:
  0273-2300
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Florida ; OSHA Region 3 ; OSHA Region 4 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  189-194
• Volume:
  64
• Issue:
  2
• NIOSHTIC Number:
  nn:20062707
• Citation:
  Regul Toxicol Pharmacol 2012 Nov; 64(2):189-194
• Contact Point Address:
  D.R. Van Orden, RJ Lee Group, Inc., 350 Hochberg Road, Monroeville, PA 15146
• Email:
  drew@rjlg.com
• CAS Registry Number:
  Asbestos (CAS RN 1332-21-4)
• Federal Fiscal Year:
  2013
• Performing Organization:
  Sunshine Education and Research Center, University of South Florida
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Regulatory Toxicology and Pharmacology
• End Date:
  20290630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:b657a742a8c29fd437b6a95e0b1be1e757bcec55e35323e3f7a97c9be5a7f5b4696323bad76d578f58516b43e277233c5c1f46c8889cf88c53a37df0896bac43
• Download URL:
  https://stacks.cdc.gov/view/cdc/225902/cdc_225902_DS1.pdf
• File Type:
  [PDF - 383.16 KB ]