| Autor: |
Blatchley III, Ernest R., Brenner, David J., Claus, Holger, Cowan, Troy E., Linden, Karl G., Liu, Yijing, Mao, Ted, Park, Sung-Jin, Piper, Patrick J., Simons, Richard M., Sliney, David H. |
| Předmět: |
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| Zdroj: |
Critical Reviews in Environmental Science & Technology; 2023, Vol. 53 Issue 6, p733-753, 21p |
| Abstrakt: |
Far UV-C, informally defined as electromagnetic radiation with wavelengths between 200 and 230 nm, has characteristics that are well-suited to control of airborne pathogens. Specifically, Far UV-C has been shown to be highly effective for inactivation of airborne pathogens; yet this same radiation has minimal potential to cause damage to human skin and eye tissues. Critically, unlike UV-B, Far UV-C radiation does not substantially penetrate the dead cell layer of skin (stratum corneum) and does not reach germinative cells in the basal layer. Similarly, Far UV-C radiation does not substantially penetrate through corneal epithelium of the eye, thereby preventing exposure of germinative cells within the eye. The most common source of Far UV-C radiation is the krypton chloride excimer (KrCl*) lamp, which has a primary emission centered at 222 nm. Ozone production from KrCl* lamps is modest, such that control of indoor ozone from these systems can be accomplished easily using conventional ventilation systems. This set of characteristics offers the potential for Far UV-C devices to be used in occupied spaces, thereby allowing for improved effectiveness for inactivation of airborne pathogens, including those that are responsible for COVID-19. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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