About: COVID-19 in air suspensions

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

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	COVID-19 in air suspensions
Creator	Stariolo, Daniel
source	ArXiv
abstract	We analyse the stability of virus-carrying particles in air at equilibrium after the dissipation of the initial turbulent process produced by sneezing, coughing, breathing or speaking. Because the viruses are expelled mainly attached to small droplets, with diverse sizes and weights, and the external environmental conditions can also be diverse, the subsequent motion spannes different spatial and temporal scales. For droplet sizes larger than $100/,/mu m$, computing the time of decay to the ground and the distance travelled with a simple free fall model with empirical data extracted from the literature, we obtain distances in the range between $1$ to $3$ meters from the emitter, with a falling time of less than $1/,s$, similar to known recommendations for safe social distancing. For droplets sizes less than $100/,/mu m$ a simple model of motion in a viscous medium predicts that isolated viruses could remain suspended in quiet air for more than a month, while small droplets of $1/,/mu m$ in size can remain suspended for several hours, in agreement with recent experimental results on virus stability in aerosols. These results give solid background for the discussion of prevention strategies, like the use of masks in closed environments.
has issue date	2020-04-12(xsd:dateTime)
has license	arxiv
sha1sum (hex)	32ef5c81b9f2774bbe0181658a466befe7fc6755
resource representing a document's title	COVID-19 in air suspensions
resource representing a document's body	covid:32ef5c81b9f2774bbe0181658a466befe7fc6755#body_text
is schema:about of	named entity 'equilibrium' named entity 'initial' named entity 'ground' named entity 'simple' named entity 'droplets' »more»

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