Indoor air quality implications of germicidal 222 nm light

VP Barber, MB Goss, LJ Franco Deloya… - Environmental …, 2023 - ACS Publications
One strategy for mitigating the indoor transmission of airborne pathogens, including the
SARS-CoV-2 virus, is irradiation by germicidal UV light (GUV). A particularly promising …

Significant production of ozone from germicidal UV lights at 222 nm

Z Peng, DA Day, GA Symonds, OJ Jenks… - … & Technology Letters, 2023 - ACS Publications
Lamps emitting at 222 nm have attracted recent interest for germicidal ultraviolet disinfection
(“GUV222”). Their impact on indoor air quality is considered negligible. In this study, ozone …

Reducing Transmission of Airborne Respiratory Pathogens: A New Beginning as the COVID-19 Emergency Ends

LC Marr, JM Samet - Environmental Health Perspectives, 2024 - ehp.niehs.nih.gov
Background: In response to the COVID-19 pandemic, new evidence-based strategies have
emerged for reducing transmission of respiratory infections through management of indoor …

Chemical fate of oils on indoor surfaces: ozonolysis and peroxidation

Z Zhou, LR Crilley, JC Ditto… - Environmental …, 2023 - ACS Publications
Unsaturated triglycerides found in food and skin oils are reactive in ambient air. However,
the chemical fate of such compounds has not been well characterized in genuine indoor …

Ozone generation from a germicidal ultraviolet lamp with peak emission at 222 nm

MF Link, A Shore, BH Hamadani… - … science & technology …, 2023 - ACS Publications
Recent interest in commercial devices containing germicidal ultraviolet lamps with a peak
emission wavelength at 222 nm (GUV222) has focused on mitigating virus transmission …

Far-UVC disinfection of airborne and surface virus in indoor environments: laboratory experiments and numerical simulations

K Guo, Y Pan, HFR Chan, KF Ho, C Chen - Building and Environment, 2023 - Elsevier
Numerical models have been used to predict the efficacy of ultraviolet (UV) lamps in
disinfecting indoor bioaerosols. However, detailed experimental data on both air and …

Effects of 222 nm Germicidal Ultraviolet Light on Aerosol and VOC Formation from Limonene

OJ Jenks, Z Peng, MK Schueneman, M Rutherford… - ACS ES&T …, 2024 - ACS Publications
Since the 1930s, germicidal ultraviolet (GUV) irradiation has been used indoors to prevent
the transmission of airborne diseases, such as tuberculosis and measles. Recently, it has …

[HTML][HTML] Far-UVC: technology update with an untapped potential to mitigate airborne infections

PJ Bueno de Mesquita, RK Sokas, MB Rice… - Annals of the …, 2023 - atsjournals.org
Clinicians and patients spent the fall and winter of 2022 grappling with the triple surge of
SARS-CoV-2, influenza, and RSV. Meanwhile, a host of zoonotic diseases await the …

Quantification of byproduct formation from portable air cleaners using a proposed standard test method

MF Link, R Robertson, MS Claflin… - … science & technology, 2024 - ACS Publications
In response to the COVID-19 pandemic, air cleaning technologies were promoted as useful
tools for disinfecting public spaces and combating airborne pathogen transmission …

Oxygen effect on the ultraviolet-C photochemistry of lactic acid

AM Deal, V Vaida - The Journal of Physical Chemistry A, 2023 - ACS Publications
Lactic acid, a small α-hydroxyacid, is ubiquitous in both indoor and outdoor environments.
Recently, the photochemistry of lactic acid has garnered interest among the abiotic organic …