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

Autor: U Yanagi, Yoshinori Honma, Masayuki Ogata, Shin-ichi Tanabe, Yoshihide Yamamoto, Naoki Kagi, Motoa Hayashi, Koki Kikuta
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Atmosphere; Volume 14; Issue 1; Pages: 150
ISSN: 2073-4433
DOI: 10.3390/atmos14010150
Popis: 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.
Databáze: OpenAIRE