Efficacy of Grignard Pure to Inactivate Airborne Phage MS2, a Common SARS-CoV-2 Surrogate

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(10), P. 4231 - 4240

Published: Feb. 28, 2023

Grignard Pure (GP) is a unique and proprietary blend of triethylene glycol (TEG) inert ingredients designed for continuous antimicrobial treatment air. TEG has been designated as ″Safer Chemical" by the US EPA. GP already received approval from EPA under its Section 18 Public Health Emergency Exemption program use in seven states. This study characterizes efficacy inactivating MS2 bacteriophage─a nonenveloped virus widely used surrogate SARS-CoV-2. Experiments measured decrease airborne viable concentration presence different concentrations 60 to 90 min, accounting both natural die-off settling MS2. were conducted introducing aerosol into air containing aerosol. consistently able rapidly reduce bacteriophage 2-3 logs at 0.04-0.5 mg/m3 (corresponding 0.025 0.287 mg/m3). Related experiments EPA, well safety toxicology, are also discussed.

Language: Английский

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Rapid monitoring of indoor airborne influenza and coronavirus with high air flowrate electrostatic sampling and PCR analysis

Frontiers of Environmental Science & Engineering, Journal Year: 2024, Volume and Issue: 18(7)

Published: April 4, 2024

Language: Английский

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A Pilot Study Exploring the Risk of SARS-CoV-2 Infection Among Employees Handling Healthcare Waste in Selected Healthcare Risk Waste Facilities in Johannesburg, South Africa

International Journal of Environmental Research and Public Health, Journal Year: 2025, Volume and Issue: 22(2), P. 243 - 243

Published: Feb. 8, 2025

The SARS-CoV-2 pandemic has increased healthcare waste (HCW) across the globe, giving rise to new challenges such as illegal dumping of medical waste, and an risk hazardous exposure blood body fluids that could cause diseases. study aimed determine factors associated with infection among employees handling in selected (HCRW) facilities Johannesburg, South Africa. pilot followed a cross-sectional design, where self-administered questionnaires were used collect data on occupation-related for HCW handlers working generation, transportation, final disposal. A total 33 participants from eight HCRW participated study. analysis showed 21.9% (n = 7) who reported positive test result COVID-19, while 78.1% 26) negative COVID-19. logistic regression repeated (COR: 1.50, 95% CI: 1.00–2.25) not having sufficient hand washing 1.13: 1.04–1.24) odds infection; however, these significant risks SARS-CoV-2. In multivariable analysis, being trained personal protective equipment (PPE) use (AOR: 1.25, 1.00–1.58) infection, 3-6 years experience significantly lowered by 33% 0.67, 0.48–0.95). These preliminary findings show accessibility handwashing facilities, training PPE, work experience, contact may play role modifying handlers. larger sample size is needed comprehensively quantify occupation related communicable disease infections

Language: Английский

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Antiviral and Sustainable Coating on Textiles by Moringa oleifera Protein for Personal Protective Equipment Applications

ACS ES&T Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Language: Английский

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Multi-year (2015-2023) trend and key factors of bioaerosols in urban atmosphere: A case study in Xi’an

Atmospheric Environment, Journal Year: 2025, Volume and Issue: unknown, P. 121258 - 121258

Published: April 1, 2025

Language: Английский

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