Organic aerosol formation from 222 nm germicidal light: ozone-initiated <i>vs.</i> non-ozone pathways.

ABSTRACT: Germicidal ultraviolet lamps outputting 222 nm light (GUV₂₂₂) have the potential to reduce the airborne spread of disease through effective inactivation of pathogens, while remaining safe for direct human exposure. However, recent studies have identified these lamps as a source of ozone and other secondary pollutants such as secondary organic aerosol (SOA), and the health effects of these pollutants must be balanced against the benefits of pathogen inactivation. While ozone reactions are likely to account for much of this secondary indoor air pollution, 222 nm light may initiate additional non-ozone chemical processes, including the formation of other oxidants and direct photolytic reactions, which are not as well understood. This work examines the impacts of GUV₂₂₂ o

SUBMITTER: Goss MB 

PROVIDER: S-EPMC11497901 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature