Radiation Exposure Assessment for Portsmouth Naval Shipyard Health Studies

Details

• Personal Author:
  Chen P ; Daniels, Robert D. ; Taulbee TD
• Description:
  Occupational radiation exposures of 13,475 civilian nuclear shipyard workers were investigated as part of a retrospective mortality study. Estimates of annual, cumulative and collective doses were tabulated for future dose-response analysis. Record sets were assembled and amended through range checks, examination of distributions and inspection. Methods were developed to adjust for administrative overestimates and dose from previous employment. Uncertainties from doses below the recording threshold were estimated. Low-dose protracted radiation exposures from submarine overhaul and repair predominated. Cumulative doses are best approximated by a hybrid log-normal distribution with arithmetic mean and median values of 20.59 and 3.24 mSv, respectively. The distribution is highly skewed with more than half the workers having cumulative doses <10 mSv and >95% having doses <100 mSv. The maximum cumulative dose is estimated at 649.39 mSv from 15 person-years of exposure. The collective dose was 277.42 person-Sv with 96.8% attributed to employment at Portsmouth Naval Shipyard. [Description provided by NIOSH]
• Subjects:
  Environmental Monitoring Occupational Health Radiation Safety Ships
• Keywords:
  Exposure-assessment Nuclear-radiation Radiation-exposure Shipbuilding-industry Shipyard-industry Shipyard-workers Shipyards
• ISSN:
  0144-8420
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Maine ; Ohio ; OSHA Region 1 ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DSHEFS - Division of Surveillance, Hazard Evaluations, and Field Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  139-150
• Volume:
  111
• Issue:
  2
• NIOSHTIC Number:
  nn:20025683
• Citation:
  Radiat Prot Dosim 2004 Jul; 111(2):139-150
• Contact Point Address:
  Division of Surveillance, Hazard Evaluations, and Field Studies, National Institute for Occupational Safety and Health, 5555 Ridge Avenue, R-44, Cincinnati, OH 45213
• Email:
  RTD2@CDC.gov
• Federal Fiscal Year:
  2004
• Peer Reviewed:
  True
• Source Full Name:
  Radiation Protection Dosimetry
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1fe1c9083b6a56b030ca1f4ee19ece64f688838da6b8e2d21de31589ec5c659b11f48a802d22ae27075aad31628baf75e6b8b4961746933d8468dbfd7d4b279f
• Download URL:
  https://stacks.cdc.gov/view/cdc/196948/cdc_196948_DS1.pdf
• File Type:
  [PDF - 320.70 KB ]