Multizonal modeling of SARS-CoV-2 aerosol dispersion in a virtual office building.
Aerosol
Airflow network
Multizonal modeling
SARS-CoV-2
Ventilation
Journal
Building and environment
ISSN: 0360-1323
Titre abrégé: Build Environ
Pays: England
ID NLM: 101562928
Informations de publication
Date de publication:
Dec 2021
Dec 2021
Historique:
received:
28
06
2021
revised:
28
08
2021
accepted:
12
09
2021
entrez:
27
9
2021
pubmed:
28
9
2021
medline:
28
9
2021
Statut:
ppublish
Résumé
The dispersion of indoor airborne contaminants across different zones within a mechanically ventilated building is a complex phenomenon driven by multiple factors. In this study, we modeled the indoor dispersion of airborne SARS-CoV-2 aerosols within a US Department of Energy detailed medium office prototype building using CONTAM software. The aim of this study is to improve our understanding about how different parts of a building can experience varying concentrations of the airborne viruses under different circumstances of release and mitigation strategies. Results indicate that unventilated stairwells can have significantly higher concentrations of airborne viruses. The mitigation strategies of morning and evening flushing of conditioned zones were not found to be very effective. Instead, a constant high percentage of outdoor air in the supply mix, and the use of masks, portable HEPA air cleaners, MERV 13 or higher HVAC air filters, and ultraviolet germicidal irradiation disinfection were effective strategies to prevent airborne viral contamination in the majority of the simulated office building.
Identifiants
pubmed: 34566243
doi: 10.1016/j.buildenv.2021.108347
pii: S0360-1323(21)00744-7
pmc: PMC8451446
doi:
Types de publication
Journal Article
Langues
eng
Pagination
108347Informations de copyright
© 2021 The Authors.
Déclaration de conflit d'intérêts
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Références
Am J Respir Crit Care Med. 2020 Sep 1;202(5):651-659
pubmed: 32543913
Appl Math Model. 2021 Jul;95:297-319
pubmed: 33642664
Sci Total Environ. 2021 Apr 20;766:142593
pubmed: 33082044
Environ Int. 2020 Nov;144:106039
pubmed: 32822927
Build Simul. 2016 Aug;9(4):469-479
pubmed: 27226822
JAMA. 2020 Jul 14;324(2):141-142
pubmed: 32478797
J Hazard Mater. 2021 Jan 15;402:123771
pubmed: 33254782
Int J Environ Res Public Health. 2021 Feb 03;18(4):
pubmed: 33546515
Phys Fluids (1994). 2021 Mar;33(3):033328
pubmed: 33897241
Build Environ. 2020 Jun 15;177:106918
pubmed: 32336870
Indoor Air. 2020 Jul;30(4):557-558
pubmed: 32557915
mSphere. 2020 Oct 21;5(5):
pubmed: 33087517
ACS Nano. 2020 Jul 28;14(7):9188-9200
pubmed: 32584542
Sci Total Environ. 2020 Aug 20;731:139178
pubmed: 32388162
Build Serv Eng Res Technol. 2016 Mar;37(2):163-175
pubmed: 27099405
N Engl J Med. 2020 Feb 20;382(8):727-733
pubmed: 31978945
PLoS One. 2021 Feb 10;16(2):e0246819
pubmed: 33566852
J Environ Sci (China). 2021 Oct;108:175-187
pubmed: 34465431
J Hosp Infect. 2021 Apr;110:89-96
pubmed: 33453351
Sci Total Environ. 2020 Jul 10;725:138401
pubmed: 32283308
Build Environ. 2021 Jun;196:107788
pubmed: 33746341
Nature. 2020 Jun;582(7813):557-560
pubmed: 32340022
Environ Res. 2021 Feb;193:110343
pubmed: 33068577
Environ Int. 2020 Aug;141:105794
pubmed: 32416374
Environ Int. 2020 Jun;139:105730
pubmed: 32294574
Saf Sci. 2020 Oct;130:104866
pubmed: 32834511
Int J Environ Res Public Health. 2020 Apr 23;17(8):
pubmed: 32340347
Science. 2020 Oct 16;370(6514):303-304
pubmed: 33020250
J Infect Dis. 2020 Jul 23;222(4):564-571
pubmed: 32525979
Environ Res. 2020 Sep;188:109861
pubmed: 32718835
Environ Res. 2021 Feb;193:110612
pubmed: 33309820
Environ Int. 2020 Dec;145:106112
pubmed: 32927282
Med Hypotheses. 2020 Aug;141:109781
pubmed: 32361528
Environ Health Perspect. 2021 Apr;129(4):47002
pubmed: 33793301
Elife. 2020 Apr 02;9:
pubmed: 32228860
Sci Total Environ. 2020 Nov 10;742:140540
pubmed: 32619843
Indoor Air. 2004;14 Suppl 7:134-43
pubmed: 15330781
JAMA. 2020 Aug 4;324(5):441-442
pubmed: 32749495
Indoor Air. 2021 Mar;31(2):314-323
pubmed: 32979298
Build Environ. 2021 Mar 15;191:107617
pubmed: 33495667
Proc Natl Acad Sci U S A. 2020 Jun 2;117(22):11875-11877
pubmed: 32404416
Environ Health Prev Med. 2020 Nov 3;25(1):66
pubmed: 33143660
J Voice. 2021 Sep;35(5):765-771
pubmed: 32753296
Environ Int. 2020 Sep;142:105832
pubmed: 32521345