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Public buses decontamination by automated hydrogen peroxide aerosolization system
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Document Title
Public buses decontamination by automated hydrogen peroxide aerosolization system
Author
Arunwuttipong A., Jangtawee P., Vchirawongkwin V., Kangwansupamonkon W., Asavanant K., Ekgasit S.
Name from Authors Collection
Affiliations
Technopreneurship and Innovation Management Program, Graduate School, Chulalongkorn University, Bangkok, Thailand; Department of Chemistry, Sensor Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, Thailand; Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand; National Nanotechnology Center, National Science and Technology Development Agency, Khlong Luang, Phathum Thani, Thailand; Chulalongkorn Business School, Chulalongkorn University, Bangkok, Thailand; Research Network NANOTEC-CU on Advanced Structural and Functional Nanomaterials, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
Type
Article
Source Title
Open Access Macedonian Journal of Medical Sciences
ISSN
18579655
Year
2021
Volume
9
Page
847-856
Open Access
All Open Access, Gold
Publisher
Scientific Foundation SPIROSKI
DOI
10.3889/oamjms.2021.6828
Format
Abstract
BACKGROUND: Public transportation has been linked to an increase in the risk of coronavirus disease 2019 transmission. The effective decontamination system using aerosolized hydrogen peroxide can mitigate the transmission risk from using public transportation. AIM: The aim of this study was to develop and validate an effective decontamination system for public transport. METHODS: The experimental research was performed in 13 inter-city public buses. The aerosol generator with ultrasonic atomizer was used in the experiment. The validation process for disinfection was conducted using both a chemical indicator (CI) and spore discs biological indicator (inoculated with 106 Geobacillus stearothermophilus enclosed in glassine envelopes). The CIs and biological indicators were marked by number and placed in nine locations on each bus. The decontamination cycle was developed by analyzed of various aerosolized and decomposition period. Both concentrations of hydrogen peroxide, 5% and 7%, were used for comparison. RESULTS: In an aerosolized period, both concentrations of hydrogen peroxide at 30 min were effective for sporicidal 6-log reductions. The decontamination cycle totaled 100 min, based on a 70 min average decomposition time. CONCLUSIONS: The automated hydrogen peroxide aerosolized system is a highly effective and safe method of decontaminating public buses. © 2021 Attapol Arunwuttipong, Parinton Jangtawee, Viwat Vchirawongkwin, Wiyong Kangwansupamonkon, Kavin Asavanant, Sanong Ekgasit.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
Funding Sponsor
Chulalongkorn University; National Research Council of Thailand
License
N/A
Rights
N/A
Publication Source
Scopus
Note
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