ArticleBuilding and environment2016
On-site measurement of tracer gas transmission between horizontal adjacent flats in residential building and cross-infection risk assessment.
Article in Building and environment, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Assessing the impact of architectural and behavioral interventions for controlling indoor COVID-19 infection risk: An agent-based approach.Journal of building engineering · 2023Article
- A Novel IoT-Enabled Wireless Sensor Grid for Spatial and Temporal Evaluation of Tracer Gas Dispersion.Sensors (Basel, Switzerland) · 2023Article
- CFD Simulations of Ventilation and Interunit Dispersion in Dormitory Complex: A Case Study of Epidemic Outbreak in Shanghai.International journal of environmental research and public health · 2023Article
- Local ventilation effectiveness dependence on the airflow pattern and temperature in the case of isothermal balanced ventilation.Journal of building engineering · 2022Article
- Airborne infection risk of inter-unit dispersion through semi-shaded openings: A case study of a multi-storey building with external louvers.Building and environment · 2022Article
- Probable cross-corridor transmission of SARS-CoV-2 due to cross airflows and its control.Building and environment · 2022Article
- Spread of SARS-CoV-2 aerosols via two connected drainage stacks in a high-rise housing outbreak of COVID-19.Journal of hazardous materials · 2022Article
- Study on ventilation rates and assessment of infection risks of COVID-19 in an outpatient building.Journal of building engineering · 2021Article
- Enlightenment of re-entry airflow: The path of the airflow and the airborne pollutants transmission in buildings.Building and environment · 2021Article
- Dilution-based evaluation of airborne infection risk - Thorough expansion of Wells-Riley model.Building and environment · 2021Article
- Gaseous pollutant transport from an underground parking garage in a Mediterranean multi-story building-Effect of temporal resolution under varying weather conditions.Building simulation · 2021Article
- Estimating the nationwide transmission risk of measles in US schools and impacts of vaccination and supplemental infection control strategies.BMC infectious diseases · 2020Article
- Numerical investigation of gaseous pollutant cross-transmission for single-sided natural ventilation driven by buoyancy and wind.Building and environment · 2020Article
- Investigation of interunit dispersion in 2D street canyons: A scaled outdoor experiment.Building and environment · 2020Article
- Airflow analysis of Pyeongtaek St Mary's Hospital during hospitalization of the first Middle East respiratory syndrome patient in Korea.Royal Society open science · 2019Article
- Airflow as a Possible Transmission Route of Middle East Respiratory Syndrome at an Initial Outbreak Hospital in Korea.International journal of environmental research and public health · 2018Article
- Air infiltration induced inter-unit dispersion and infectious risk assessment in a high-rise residential building.Building simulation · 2018Article
- Gaseous pollutant transmission through windows between vertical floors in a multistory building with natural ventilation.Energy and buildings · 2017Article
- Evaluation of airborne disease infection risks in an airliner cabin using the Lagrangian-based Wells-Riley approach.Building and environment · 2017Article
- Wind tunnel tests of inter-flat pollutant transmission characteristics in a rectangular multi-storey residential building, part A: Effect of wind direction.Building and environment · 2016Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Airborne transmission is a main spread mode of respiratory infectious diseases, whose frequent epidemic has brought serious social burden. Identifying possible routes of the airborne transmission and predicting the potential infection risk are meaningful for infectious disease control. In the present study, an internal spread route between horizontal adjacent flats induced by air infiltration was investigated. On-site measurements were conducted, and tracer gas technique was employed. Two measurement scenarios, closed window mode and open window mode, were compared. Using the calculated air change rate and mass fraction, the cross-infection risk was estimated using the Wells-Riley model. It found that tracer gas concentrations in receptor rooms are one order lower than the source room, and the infection risks are also one order lower. Opening windows results in larger air change rate on the one hand, but higher mass fraction on the other hand. Higher mass fraction not necessarily results in higher infection risk as the pathogen concentration in the source room is reduced by the higher air change rate. In the present study, opening windows could significantly reduce the infection risk of the index room but slightly reduce the risks in receptor rooms. The mass fraction of air originated from the index room to the receptor units could be 0.28 and the relative cross-infection risk through the internal transmission route could be 9%, which are higher than the external spread through single-sided window flush. The study implicates that the horizontal transmission route induced by air infiltration should not be underestimated.
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