Neglected Aspects of SARS-CoV-2 Aerosol Transmission in Bathrooms of Multistory and High-Rise Buildings — Beijing Municipality, China, October 2022

Lyu, Keyang; Wang, Qin; Li, Xia; Zhang, Zhuona; Zhao, Xiaoning; Li, Yunpu; Tang, Zhigang; Li, Longjian; Deng, Fuchang; Zhang, Xiaoyu; Xu, Kun; Zhao, Ran; Xu, Dongqun

doi:10.46234/ccdcw2023.001

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…Studies have demonstrated that SARS-CoV-2 can be transmitted through aerosols [ 10 , 11 , [19] , [20] , [21] ]. According to experimental data, SARS-CoV-2 can survive and remain infectious in aerosols for several hours [ 22 , 23 ].…”

Section: Pathogenic Microorganisms In the Atmospheric Environmentmentioning

confidence: 99%

An overview for monitoring and prediction of pathogenic microorganisms in the atmosphere

Huang,

Wang,

Zhu

et al. 2024

Fundamental Research

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Section: Pathogenic Microorganisms In the Atmospheric Environmentmentioning

confidence: 99%

An overview for monitoring and prediction of pathogenic microorganisms in the atmosphere

Huang,

Wang,

Zhu

et al. 2024

Fundamental Research

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“…Several epidemiological studies [13][14][15][16] revealed that the COVID-19 patients in some buildings were distributed on different floors, and the patients had no direct contact with each other. A possible transmission route was through vertical airborne transmission.…”

Section: Introductionmentioning

confidence: 99%

“…A possible transmission route was through vertical airborne transmission. However, previous investigations [13][14][15] mainly analyzed the cross-floor transmission of virus aerosols through drainage and air conditioning systems. Few investigations have explored the potential transmission due to the elevator system.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Cross-Transmission of Airborne Pollutants in a High-Rise Building Induced by Elevator Car Movement

2023

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An elevator shaft provides passage for air exchange across floors and thus imposes infectious disease transmission risk. The moving elevator car generates positive air pressure in the shaft section to which the car approaches, while negative air pressure is generated in the section where the car leaves away. This investigation adopted computational fluid dynamics (CFD) to model the exchange airflow between the lobbies of each floor and the shaft accompanying the car movement. Dynamic distributions of the air pressure, velocity, and airborne pollutant concentration inside both the shaft and the lobbies were solved. The modeling results were verified with some experimental test data. The results revealed that the alternatively changed air pressures inside the shaft while the car was moving caused significant airflow exchange via the clearances of the protecting doors and, thus, the transmission of airborne pollutants across floors. The sudden changes in the airflow rates could be due to the elevator car passing by the protecting door’s opening on the concerned floor or the generated water hammer when the car was parked. To minimize the transmission of airborne pollutants across floors, the pressures inside the shaft must be better controlled, and the clearance of the elevator’s protecting doors shall be further minimized.

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Vertical transmission of aerosols between building flats through drainage system: A review

Chang,

Mu,

Zhao

et al. 2024

Building and Environment

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Neglected Aspects of SARS-CoV-2 Aerosol Transmission in Bathrooms of Multistory and High-Rise Buildings — Beijing Municipality, China, October 2022

Cited by 4 publications

References 7 publications

An overview for monitoring and prediction of pathogenic microorganisms in the atmosphere

An overview for monitoring and prediction of pathogenic microorganisms in the atmosphere

Numerical Modeling of Cross-Transmission of Airborne Pollutants in a High-Rise Building Induced by Elevator Car Movement

Vertical transmission of aerosols between building flats through drainage system: A review

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