Transport dynamics of SARS-CoV-2 under outdoor conditions

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dc.contributor.authorAydın, Mehmet
dc.contributor.authorEvrendilek, Fatih
dc.contributor.authorAydın, İsmail Erkan
dc.contributor.authorSavaş, Seçkin Aydın
dc.contributor.authorEvrendilek, Deniz Eren
dc.date.accessioned2022-09-12T10:26:37Z
dc.date.available2022-09-12T10:26:37Z
dc.date.issued2022
dc.departmentALKÜ, Fakülteler, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü
dc.description.abstractThis study aimed at estimating the transport dynamics of a single severe acute respiratory syndrome corona-virus 2 (SARSCoV-2)-laden droplet of 1 to 500 ?m in diameter at a wind speed from 1 to 4 m/s. Motion dynamics of SARS-CoV-2-laden respiratory droplets under calm or turbulent air conditions were quantifed using a combined model. Dalton’s law was implemented to estimate their evaporation. One-factor-at-a-time procedure was applied for the sensitivity analysis of model of deposition velocity. The transport distance of the single virus ranged from 167 to 1120 m as a function of the droplet size, wind speed, and falling time. The evaporation times of the droplets?3 and?14 ?m in diameter were shorter than their settling times from 1.7 m in height at midnight and midday, respectively. Such droplets remained in the air for about 5 min as the droplet nuclei with SARS-CoV-2. The minimum transport distance of the respiratory droplets of 1–15 ?m varied between 8.99 and 142 m at a wind speed range of 1–4 m/s, based on their deposition velocity. With their short transport distance, the larger droplet (30 to 500 ?m) was not suspended in the air even under the windy conditions. The deposition velocity was found most sensitive to the droplet diameter. The droplets<15 ?m in diameter completely evaporated at midday and the droplet nuclei with the single virus can travel a minimum distance of 500 m under a horizontal wind speed of 3 m/s.
dc.identifier.doi10.1007/s11869-022-01196-x
dc.identifier.endpage899en_US
dc.identifier.issue5en_US
dc.identifier.startpage893en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12868/1527
dc.identifier.urihttps://link.springer.com/article/10.1007/s11869-022-01196-x
dc.identifier.volume15en_US
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.relation.ispartofAir Quality Atmosphere and Health
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCOVID-19
dc.subjectTransport distance
dc.subjectRespiratory droplet size
dc.subjectDroplet evaporation
dc.subjectDry deposition velocity
dc.titleTransport dynamics of SARS-CoV-2 under outdoor conditions
dc.typeArticle

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