2021
DOI: 10.1016/j.scs.2021.103090
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Human exposure to respiratory aerosols in a ventilated room: Effects of ventilation condition, emission mode, and social distancing

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Cited by 51 publications
(27 citation statements)
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“…Droplets will fall to the ground or surfaces with the distance less than 1m, while aerosols behave like gas through spreading to longer distances before settling on the surfaces. Due to the safe social distance of at least 1 m between the occupants should be guaranteed under the normalized control of COVID-19, we mainly focus on infection risks caused by long distance transmission ( Pei, Taylor, & Rim, 2021 ). Thus, simulations of pollutant concentration were conducted to the evaluate the infection risk caused by an infected occupant, which is associated with the flow turbulence.…”
Section: Methodsmentioning
confidence: 99%
“…Droplets will fall to the ground or surfaces with the distance less than 1m, while aerosols behave like gas through spreading to longer distances before settling on the surfaces. Due to the safe social distance of at least 1 m between the occupants should be guaranteed under the normalized control of COVID-19, we mainly focus on infection risks caused by long distance transmission ( Pei, Taylor, & Rim, 2021 ). Thus, simulations of pollutant concentration were conducted to the evaluate the infection risk caused by an infected occupant, which is associated with the flow turbulence.…”
Section: Methodsmentioning
confidence: 99%
“…In other words, the velocity of the particles at a given point may behave chaotically with time under the turbulent fluctuations (Anchordoqui and Chudnovsky 2020 ; Chong et al 2020 ). Pei et al ( 2021 ) reported that buoyancy-driven flow regime led to a longer transmission distance and elevated exposure to viral aerosols than did the mixing airflow. According to Bond et al ( 2021 ), particle size drives its transport, deposition onto surfaces, and elimination by mitigation measures.…”
Section: Introductionmentioning
confidence: 99%
“…Unfortunately, these measures do not prevent infection by inhalation of small droplets exhaled by an infected person that can travel distances of meters or tens of meters in the air and carry their viral content." Almost three months later, in July 2020, a follow-up article by Morawska and Milton [8], was co-signed by 239 scientists and started with the statement: "We appeal to the medical community and to the relevant national and international bodies to recognize the potential for airborne spread of coronavirus disease 2019 (COVID- 19). There is significant potential for inhalation exposure to viruses in microscopic respiratory droplets (microdroplets) at short to medium distances (up to several meters, or room scale), and we are advocating for the use of preventive measures to mitigate this route of airborne transmission."…”
Section: Introduction 1background: Characterizing Pathways Of Covid-19 Transmissionmentioning
confidence: 99%
“…Aerosol-based transmission of SARS-CoV-2 has been explored in several laboratory studies [13][14][15], while extensive work is ongoing to further elucidate the role of this transmission mode on the spread of the COVID-19 pandemic [16][17][18]. A wide spectrum of studies reveal multiple physical and biological process complexities associated with the aerosol transmission pathway, ranging from the role of indoor ventilation patterns [19] to different viral loads in aerosols for different variants of SARS-CoV-2 [20,21].…”
Section: Introduction 1background: Characterizing Pathways Of Covid-19 Transmissionmentioning
confidence: 99%