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Article: Short-range bioaerosol deposition and inhalation of cough droplets and performance of personalized ventilation

TitleShort-range bioaerosol deposition and inhalation of cough droplets and performance of personalized ventilation
Authors
KeywordsTiina Reponen
Issue Date2021
PublisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/02786826.asp
Citation
Aerosol Science and Technology, 2021, v. 55 n. 4, p. 474-485 How to Cite?
AbstractA short distance between infected persons and exposed persons can probably result in a high risk of respiratory infection. This work experimentally investigated the short-range bioaerosol deposition and inhalation by a healthy person (HP) and the effect of a personalized ventilation (PV) on the HP, who was exposed to cough droplets from an infected person (IP) over a short distance between 0.5 m and 1.2 m. Benign E. coli was employed to represent the pathogen from the respiratory droplets. The microorganism deposition on different locations of the HP’s body (shoulder, chest and body back) and face (forehead, cheek, and chin) as well as inhalation were characterized by a cultivation method. It was found that the inhalation and deposition of vital pathogens on the face and body surface of the HP increased as the distance between the HP and the IP decreased. PV has been showed to reduce exposure by inhalation, while this is the first time to demonstrate that PV can also significantly reduce the number deposition. By optimizing the velocity of PV flow with respect to the distance, the bioaerosol deposited on the face and body and inhaled could be reduced by a maximum of 98%, 85% and 100%, respectively. For short-range disease transmission, physical barriers, e.g., mask and partition, are the conventional and believed to be the only intervention measures. The current results indicate that PV can be a potential method for infection control in the area of disease transmission in close contact situations.
Persistent Identifierhttp://hdl.handle.net/10722/302068
ISSN
2023 Impact Factor: 2.8
2023 SCImago Journal Rankings: 0.762
ISI Accession Number ID
Grants

 

DC FieldValueLanguage
dc.contributor.authorXu, JC-
dc.contributor.authorWang, CT-
dc.contributor.authorFu, SC-
dc.contributor.authorChan, KC-
dc.contributor.authorChao, CYH-
dc.date.accessioned2021-08-21T03:31:06Z-
dc.date.available2021-08-21T03:31:06Z-
dc.date.issued2021-
dc.identifier.citationAerosol Science and Technology, 2021, v. 55 n. 4, p. 474-485-
dc.identifier.issn0278-6826-
dc.identifier.urihttp://hdl.handle.net/10722/302068-
dc.description.abstractA short distance between infected persons and exposed persons can probably result in a high risk of respiratory infection. This work experimentally investigated the short-range bioaerosol deposition and inhalation by a healthy person (HP) and the effect of a personalized ventilation (PV) on the HP, who was exposed to cough droplets from an infected person (IP) over a short distance between 0.5 m and 1.2 m. Benign E. coli was employed to represent the pathogen from the respiratory droplets. The microorganism deposition on different locations of the HP’s body (shoulder, chest and body back) and face (forehead, cheek, and chin) as well as inhalation were characterized by a cultivation method. It was found that the inhalation and deposition of vital pathogens on the face and body surface of the HP increased as the distance between the HP and the IP decreased. PV has been showed to reduce exposure by inhalation, while this is the first time to demonstrate that PV can also significantly reduce the number deposition. By optimizing the velocity of PV flow with respect to the distance, the bioaerosol deposited on the face and body and inhaled could be reduced by a maximum of 98%, 85% and 100%, respectively. For short-range disease transmission, physical barriers, e.g., mask and partition, are the conventional and believed to be the only intervention measures. The current results indicate that PV can be a potential method for infection control in the area of disease transmission in close contact situations.-
dc.languageeng-
dc.publisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/02786826.asp-
dc.relation.ispartofAerosol Science and Technology-
dc.rightsThis is an Accepted Manuscript of an article published by Taylor & Francis in Aerosol Science and Technology on 28 Jan 2021, available online: http://www.tandfonline.com/10.1080/02786826.2020.1870922-
dc.subjectTiina Reponen-
dc.titleShort-range bioaerosol deposition and inhalation of cough droplets and performance of personalized ventilation-
dc.typeArticle-
dc.identifier.emailWang, CT: ctwang@hku.hk-
dc.identifier.emailFu, SC: scfu@hku.hk-
dc.identifier.emailChan, KC: mekcchan@hku.hk-
dc.identifier.emailChao, CYH: cyhchao@hku.hk-
dc.identifier.authorityFu, SC=rp02549-
dc.identifier.authorityChao, CYH=rp02396-
dc.description.naturepostprint-
dc.identifier.doi10.1080/02786826.2020.1870922-
dc.identifier.scopuseid_2-s2.0-85100164723-
dc.identifier.hkuros324348-
dc.identifier.volume55-
dc.identifier.issue4-
dc.identifier.spage474-
dc.identifier.epage485-
dc.identifier.isiWOS:000612794600001-
dc.publisher.placeUnited States-
dc.relation.projectInvestigation of enhancement of particle deposition by micro-structured surfaces in turbulent flows-

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