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A Comparison of Direct-Reading Instruments for the Measurement of Hexavalent Chromium During Stainless Steel Welding



Details

  • Personal Author:
  • Description:
    Hexavalent chromium (Cr(VI)), a known human carcinogen, is a potential exposure concern for workers performing tasks such as welding, soldering or brazing. Traditional monitoring methods for Cr(VI) require the use of a closed-face cassette with a polyvinyl chloride filter, followed by analysis using high-performance liquid chromatography with an ultraviolet and visible light detector, to measure an 8-hr time weighted average (TWA). Utilizing this method can produce a substantial lag time between sampling and results. The use of a direct-reading instrument would provide a useful tool to enable real-time estimation of Cr(VI) for rapid assessment of exposure controls. For this study, three direct-reading instruments were compared with the traditional sampling method: the TSI DustTrak 8520, the HazDust EPAM 5000 and the GRIMM 1.109. A total of 10 side-by-side sampling events were carried out in three different workplaces where welding of stainless steel was being performed. Results from all three instruments found they performed well when compared to the traditional method based on linear regression modeling, and with all R2 greater than 0.80. This study demonstrated potential value for using direct-reading instruments to quickly estimate Cr(VI) in air during welding operations. [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • ISSN:
    1871-5532
  • Document Type:
    Text
  • Funding:
    Grant
  • Genre:
    Journal Article
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    7 pdf pages
  • NIOSHTIC Number:
    nn:20067334
  • Citation:
    J Chem Health Saf 2016 May-Jun; 23(3):36-42
  • Contact Point Address:
    Darrah K. Sleeth, Rocky Mountain Center for Occupational & Environmental Health, Department of Family & Preventive Medicine, University of Utah, Salt Lake City, UT 84108, United States
  • Email:
    Darrah.sleeth@hsc.utah.edu
  • CAS Registry Number:
    Chromium(6+) (CAS RN 18540-29-9)
  • Federal Fiscal Year:
    2016
  • Performing Organization:
    University of Utah
  • Peer Reviewed:
    True
  • Start Date:
    20050701
  • Source Full Name:
    Journal of Chemical Health and Safety
  • End Date:
    20280630
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:ded1be224a10cb624a35692a88ffca82e90c0c451f19bdc321a74895431277ecc258fd33de3e2eabf511e60c06a12a6ce706c8e093d7d66c38c6208d5db15df4
  • Download URL:
  • File Type:
    Filetype[PDF - 1.16 MB ]
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