Human exposure to air contaminants under the far-UVC system operation in an office: effects of lamp position and ventilation condition.
COVID-19
Germicidal ultraviolet
Indoor air quality
Ozone
Secondary chemistry
UVC 222 nm
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
18 Oct 2024
18 Oct 2024
Historique:
received:
15
05
2024
accepted:
03
10
2024
medline:
19
10
2024
pubmed:
19
10
2024
entrez:
18
10
2024
Statut:
epublish
Résumé
The far-UVC (222 nm) system has emerged as a solution for controlling airborne transmission, yet its effect on indoor air quality, particularly concerning positioning, remains understudied. In this study, we examined the impact of far-UVC lamp position on the disinfection and secondary contaminant formation in a small office. We employed a three-dimensional computational fluid dynamics (CFD) model to integrate UV intensity fields formed by different lamp positions (ceiling-mounted, wall-mounted, and stand-alone types) along with the air quality model. Our findings reveal that the ceiling-mounted type reduces human exposure to airborne pathogens by up to 80% compared to scenarios without far-UVC. For all the lamp positions, O
Identifiants
pubmed: 39424884
doi: 10.1038/s41598-024-75245-z
pii: 10.1038/s41598-024-75245-z
doi:
Substances chimiques
Ozone
66H7ZZK23N
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
24465Informations de copyright
© 2024. The Author(s).
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