Ventilation Methods against Indoor Aerosol Infection of COVID-19 in Japan

The importance of effective ventilation as one of the measures against COVID-19 is widely recognized worldwide. In Japan, at the early stage of the pandemic, in March 2020, an official announcement was made about basic ventilation measures against COVID-19. WHO also used the term “long-range aerosol...

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Main Authors: Motoya Hayashi, U Yanagi, Yoshinori Honma, Yoshihide Yamamoto, Masayuki Ogata, Koki Kikuta, Naoki Kagi, Shin-ichi Tanabe
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Atmosphere
Subjects:
Online Access:https://www.mdpi.com/2073-4433/14/1/150
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author Motoya Hayashi
U Yanagi
Yoshinori Honma
Yoshihide Yamamoto
Masayuki Ogata
Koki Kikuta
Naoki Kagi
Shin-ichi Tanabe
author_facet Motoya Hayashi
U Yanagi
Yoshinori Honma
Yoshihide Yamamoto
Masayuki Ogata
Koki Kikuta
Naoki Kagi
Shin-ichi Tanabe
author_sort Motoya Hayashi
collection DOAJ
description The importance of effective ventilation as one of the measures against COVID-19 is widely recognized worldwide. In Japan, at the early stage of the pandemic, in March 2020, an official announcement was made about basic ventilation measures against COVID-19. WHO also used the term “long-range aerosol or long-range airborne transmission” for the first time in December 2021. Based on the aerosol infection control measures before 2021 by the Japanese government, we conducted experiments on methods related to partition placement as an element of effective ventilation methods. In July 2022, the governmental subcommittee on Novel Coronavirus Disease Control provided an emergent proposal about effective ventilation methods to prevent two types of aerosol infection; infection by large aerosol on the air current and infection by small floating aerosol diffusion in a room. They also showed the way of setting droplet prevention partitions, which do not block off ventilation based on this investigation’s results.
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spelling doaj.art-40e03a211d8544bd8ec12d4efcd5f0f32023-11-30T21:10:06ZengMDPI AGAtmosphere2073-44332023-01-0114115010.3390/atmos14010150Ventilation Methods against Indoor Aerosol Infection of COVID-19 in JapanMotoya Hayashi0U Yanagi1Yoshinori Honma2Yoshihide Yamamoto3Masayuki Ogata4Koki Kikuta5Naoki Kagi6Shin-ichi Tanabe7Faculty of Engineering, Hokkaido University, Sapporo 0608628, JapanSchool of Architecture, Kogakuin University, Tokyo 1638677, JapanNational Institute of Public Health, Wako 3510197, JapanFaculty of Engineering, Tokyo Polytechnic University, Kanagawa 2430297, JapanDepartment of Architecture, Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, Tokyo 1920397, JapanFaculty of Engineering, Hokkaido University, Sapporo 0608628, JapanDepartment of Architecture and Building Engineering, School of Environment and Society, Tokyo Institute of Technology, Tokyo 1528552, JapanDepartment of Architecture, Waseda University, Tokyo 1698555, JapanThe importance of effective ventilation as one of the measures against COVID-19 is widely recognized worldwide. In Japan, at the early stage of the pandemic, in March 2020, an official announcement was made about basic ventilation measures against COVID-19. WHO also used the term “long-range aerosol or long-range airborne transmission” for the first time in December 2021. Based on the aerosol infection control measures before 2021 by the Japanese government, we conducted experiments on methods related to partition placement as an element of effective ventilation methods. In July 2022, the governmental subcommittee on Novel Coronavirus Disease Control provided an emergent proposal about effective ventilation methods to prevent two types of aerosol infection; infection by large aerosol on the air current and infection by small floating aerosol diffusion in a room. They also showed the way of setting droplet prevention partitions, which do not block off ventilation based on this investigation’s results.https://www.mdpi.com/2073-4433/14/1/150COVID-19aerosol transmissionaerosol infectionventilationair current
spellingShingle Motoya Hayashi
U Yanagi
Yoshinori Honma
Yoshihide Yamamoto
Masayuki Ogata
Koki Kikuta
Naoki Kagi
Shin-ichi Tanabe
Ventilation Methods against Indoor Aerosol Infection of COVID-19 in Japan
Atmosphere
COVID-19
aerosol transmission
aerosol infection
ventilation
air current
title Ventilation Methods against Indoor Aerosol Infection of COVID-19 in Japan
title_full Ventilation Methods against Indoor Aerosol Infection of COVID-19 in Japan
title_fullStr Ventilation Methods against Indoor Aerosol Infection of COVID-19 in Japan
title_full_unstemmed Ventilation Methods against Indoor Aerosol Infection of COVID-19 in Japan
title_short Ventilation Methods against Indoor Aerosol Infection of COVID-19 in Japan
title_sort ventilation methods against indoor aerosol infection of covid 19 in japan
topic COVID-19
aerosol transmission
aerosol infection
ventilation
air current
url https://www.mdpi.com/2073-4433/14/1/150
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