About: The airborne transmission of infection between flats in high-rise residential buildings: Tracer gas simulation

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About: The airborne transmission of infection between flats in high-rise residential buildings: Tracer gas simulation Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	The airborne transmission of infection between flats in high-rise residential buildings: Tracer gas simulation
Creator	Gao, N Heiselberg, P Niu, J Perino, M
source	Elsevier; Medline; PMC
abstract	Airborne transmission of infectious respiratory diseases in indoor environments has drawn our attention for decades, and this issue is revitalized with the outbreak of severe acute respiratory syndrome (SARS). One of the concerns is that there may be multiple transmission routes across households in high-rise residential buildings, one of which is the natural ventilative airflow through open windows between flats, caused by buoyancy effects. Our early on-site measurement using tracer gases confirmed qualitatively and quantitatively that the re-entry of the exhaust-polluted air from the window of the lower floor into the adjacent upper floor is a fact. This study presents the modeling of this cascade effect using computational fluid dynamics (CFD) technique. It is found that the presence of the pollutants generated in the lower floor is generally lower in the immediate upper floor by two orders of magnitude, but the risk of infection calculated by the Wells–Riley equation is only around one order of magnitude lower. It is found that, with single-side open-window conditions, wind blowing perpendicularly to the building may either reinforce or suppress the upward transport, depending on the wind speed. High-speed winds can restrain the convective transfer of heat and mass between flats, functioning like an air curtain. Despite the complexities of the air flow involved, it is clear that this transmission route should be taken into account in infection control.
has issue date	2007-11-19(xsd:dateTime)
bibo:doi	10.1016/j.buildenv.2007.10.023
bibo:pmid	32288000
has license	no-cc
sha1sum (hex)	1c7244aaf28f137dd5adb256b93732be45e28ce0
schema:url	https://doi.org/10.1016/j.buildenv.2007.10.023
resource representing a document's title	The airborne transmission of infection between flats in high-rise residential buildings: Tracer gas simulation
has PubMed Central identifier	PMC7115800
has PubMed identifier	32288000
schema:publication	Build Environ
resource representing a document's body	covid:1c7244aaf28f137dd5adb256b93732be45e28ce0#body_text
is schema:about of	named entity 'pollutants' named entity 'multiple' named entity 'fact' named entity 'computational fluid dynamics (CFD)' named entity 'order' named entity 'TRACER' named entity 'RISE' named entity 'GAS' named entity 'IS A' named entity 'CONCERNS' named entity 'CONDITIONS' named entity 'WINDS' named entity 'AIR FLOW' named entity 'LIKE' named entity 'PRESENCE OF' named entity 'INFECTIOUS' named entity 'WINDOW' named entity 'CURTAIN' named entity 'CONFIRMED' named entity 'SEVERE ACUTE RESPIRATORY SYNDROME' named entity 'USING' named entity 'MASS' named entity 'EXHAUST' named entity 'CONVECTIVE' named entity 'HEAT' named entity 'ACROSS' named entity 'TRACER' named entity 'AIR' named entity 'FACT' named entity 'BUILDINGS' named entity 'FOUND' named entity 'RESPIRATORY DISEASES' named entity 'PRESENTS' named entity 'ROUTES' named entity 'OUR' named entity 'GASES' covid:arg/1c7244aaf28f137dd5adb256b93732be45e28ce0 named entity 'IS GENERALLY LOWER' named entity 'WIND SPEED' named entity 'UPPER FLOOR' named entity 'HIGH' named entity 'SINGLE' named entity 'ATTENTION' named entity 'WELLS' named entity 'EITHER' named entity 'ISSUE' named entity 'CASCADE' named entity 'FUNCTIONING' named entity 'BUT' named entity 'TRANSFER' named entity 'AIRBORNE TRANSMISSION' named entity 'ROUTE' named entity 'RISK OF INFECTION' named entity 'LOWER' named entity 'WIND' named entity 'MULTIPLE' named entity 'POLLUTED AIR' named entity 'BUILDING' named entity 'WINDOWS' named entity 'INFECTION CONTROL' named entity 'HIGH' named entity 'STUDY' named entity 'OUTBREAK' named entity 'TECHNIQUE' named entity 'ONE OF' named entity 'CAUSED BY' named entity 'GENERATED' named entity 'POLLUTANTS' named entity 'BUOYANCY' named entity 'MEASUREMENT' named entity 'MAY BE' named entity 'EARLY' named entity 'AIRBORNE TRANSMISSION' named entity 'BUILDINGS' named entity 'COMPUTATIONAL FLUID DYNAMICS' named entity 'SUPPRESS' named entity 'FLOOR' named entity 'HOUSEHOLDS'

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