Sampling and analysis considerations for the determination of hexavalent chromium in workplace air

Details

• Personal Author:
  Ashley, Kevin E. ; Demange, Martine ; Howe AM ; Nygren O
• Description:
  Airborne hexavalent chromium (Cr[VI]) is a known human respiratory carcinogen and allergen. Workers in a variety of industries may be exposed to airborne hexavalent chromium, with exposures frequently occurring via inhalation and/or dermal contact. Analytical methods for the measurement of Cr(VI) compounds in workplace samples, rather than for the determination of total elemental chromium in workplace air, are often desired because exposure limit values for Cr(VI) compounds are much lower than for total Cr. For years, sampling and analytical test methods for airborne Cr(VI) have been investigated so as to provide means for occupational exposure assessment to this highly toxic species. Inter-conversion of trivalent chromium (Cr[III]) and Cr(VI) can sometimes occur during sampling and sample preparation, and efforts to minimize unwanted redox reactions involving these chromium valences have been sought. Because of differences in toxicity, there is also interest in the ability to differentiate between water-soluble and insoluble forms of Cr(VI), and procedures that provide solubility information concerning Cr(VI) compounds have been developed. This paper reviews the state of the art concerning the measurement of airborne Cr(VI) compounds in workplace aerosols and related samples. [Description provided by NIOSH]
• Subjects:
  Aerosols Carcinogens Chromium Environmental Monitoring Hypersensitivity Occupational Health Respiratory Tract Diseases Safety
• Keywords:
  Hexavalent-chromium-compounds; Carcinogens; Allergens; Respiratory-system-disorders; Aerosols; Analytical-methods; Air-quality-measurement; Air-sampling-techniques; Measurement-equipment; Chromium-compounds
• ISSN:
  0007-9952
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• 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:
  39-51
• Issue:
  195
• NIOSHTIC Number:
  nn:20025192
• Citation:
  Cah Notes Doc 2004 Apr; (195):39-51
• Contact Point Address:
  National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, OH 45226-1998
• Email:
  kashley@cdc.gov
• CAS Registry Number:
  Chromium(6+) (CAS RN 18540-29-9)
• Federal Fiscal Year:
  2004
• NORA Priority Area:
  Research Tools and Approaches: Exposure Assessment Methods
• Peer Reviewed:
  False
• Source Full Name:
  Cahiers de Notes Documentaires
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:b1f6c32828df108e631455af2eb47e5805a971f464da4905d8bad357137a6ac6c129955bfea72101c928dd4fea1a6f48a281345b9822daefa614df3207d2fd26
• Download URL:
  https://stacks.cdc.gov/view/cdc/229824/cdc_229824_DS1.pdf
• File Type:
  [PDF - 1.97 MB ]