Surface Dosimetry of Ultraviolet Germicidal Irradiation Using a Colorimetric Technique

Details

• Personal Author:
  Feng, H. Amy ; Heil, Graeham ; Lindsley, William G. ; Martin SB Jr. ; McClelland, Tia L. ; Mead, Kenneth R. ; Neu, Dylan T. ; See M
• Description:
  Ultraviolet germicidal irradiation uses ultraviolet C (UV-C) energy to disinfect surfaces in clinical settings. Verifying that the doses of UV-C energy received by surfaces are adequate for proper disinfection levels can be difficult and expensive. Our study aimed to test commercially available colorimetric labels, sensitive to UV-C energy, and compare their precision with an accepted radiometric technique. The color-changing labels were found to predictably change color in a dose-dependent manner that would allow them to act as a qualitative alternative to radiometry when determining the minimum UV-C energy dosage received at surfaces. If deployed using careful protective techniques to avoid unintentional exposure to sunlight or other light sources, the use of colorimetric labels could provide inexpensive, easy, and accurate verification of effective UV-C dosing in clinical spaces. [Description provided by NIOSH]
• Subjects:
  Disinfectants Occupational Health Safety
• Keywords:
  Author Keywords: Color-changing Labels Colorimetric Disinfection Dosimetry Germicidal Germicides Radiant Energy Radiometric Radiometry Sensitivity Testing Ultraviolet Ultraviolet Light Ultraviolet Radiation UV-C UVGI

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• ISSN:
  2398-7308
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 3 ; OSHA Region 5 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DFSE - Division of Field Studies and Engineering ; RHD - Respiratory Health Division ; HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  65
• Issue:
  5
• NIOSHTIC Number:
  nn:20062128
• Citation:
  Ann Work Expo Health 2021 Jun; 65(5):605-611
• Contact Point Address:
  Dylan T Neu, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 1090 Tusculum Ave., MS-R5, Cincinnati, OH 45226, USA
• Email:
  DNeu@cdc.gov
• Federal Fiscal Year:
  2021
• NORA Priority Area:
  Construction
• Peer Reviewed:
  True
• Source Full Name:
  Annals of Work Exposures and Health
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7586e04b6af7d0f16ff519495c8e3638dce7e5911262bff4a226ffaba59eeea920ca9afe2a7f209af44f918a7b64b95351973a39c1a0b33ad3be9f63a6ee2056
• Download URL:
  https://stacks.cdc.gov/view/cdc/225438/cdc_225438_DS1.pdf
• File Type:
  [PDF - 472.46 KB ]