Extending the Acute Skin Response Spectrum to Include the Far-UVC.

Details

• Alternative Title:
  Photochemistry and Photobiology, 2025, v. 101, no. 3: Extending the Acute Skin Response Spectrum to Include the Far-UVC.
• Journal Article:
  Photochemistry and Photobiology
• Personal Author:
  Gutierrez-Bayona, Natalia E. ; Petersen, Camryn ; Hashmi, Raabia H. ; Buonanno, Manuela ; Shuryak, Igor ; Ponnaiya, Brian ; Kleiman, Norman J. ; Brenner, David J. ; Welch, David
• Description:
  Guidance on maximal limits for ultraviolet (UV) exposure has been developed by national and international organizations to protect against adverse effects on human skin and eyes. These guidelines consider the risk of both acute effects (i.e., erythema and photokeratitis) and delayed effects (e.g., skin and ocular cancers) when determining exposure limits, and specify the dose a person can safely receive during an 8-h period without harmful effects. The determination of these exposure limits relies on the action spectra of photobiological responses triggered by UV radiation that quantify the effectiveness of each wavelength at eliciting each of these effects. With growing interest in using far-UVC (200-235 nm) radiation to control the spread of airborne pathogens, recent arguments have emerged about revisiting exposure limits for UV wavelengths. However, the standard erythema action spectrum, which provides some of the quantitative basis for these limits, has not been extended below 240 nm. This study assists to expand the erythema action spectrum to far-UVC wavelengths using a hairless albino mice model. We estimate that inducing acute effects on mouse skin with 222 nm radiation requires a dose of 1162 mJ/cm
  
  , well above the current ACGIH skin exposure limit of 480 mJ/cm
  
  .
• Content Notes:
  Author manuscript
• Subjects:
  • Ultraviolet Rays
  • Animals
  • Skin
  • Mice
  • Erythema
  • Humans
  • Mice, Hairless
• Keywords:
  • acute effects
  • far-UVC
  • skin safety
  • far‐UVC
• Source:
  Photochemistry and Photobiology, 2025, v. 101, no. 3
• DOI:
  https://doi.org/10.1111/php.14035
• ISSN:
  0031-8655 ; 1751-1097
• Pubmed ID:
  39431526
• Pubmed Central ID:
  PMC12019814
• Document Type:
  Text
• Funding:
  R01 OH012312/OH/NIOSH CDC HHSUnited States/ ; R01OH012312/OH/NIOSH CDC HHSUnited States/ ; R01OH012312/OH/NIOSH CDC HHSUnited States/
• Genre:
  Journal Article
• Pages in Document:
  673-682 (17 pdf pages)
• Volume:
  101
• Issue:
  3
• Download URL:
  https://stacks.cdc.gov/view/cdc/261965/cdc_261965_DS1.pdf
• File Type:
  [PDF - 971.21 KB]
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha-512:4113c82d0260e6e3095203d0e39af71743608c34a4f484fc2b2b66f2a6b0255394df10cab090448a1b378796aa8a0482950d69e3498d9da024f638616c6bb9d4