Repository: Freie Universit├Ąt Berlin, Math Department

Airborne virus transmission via respiratory droplets: Effects of droplet evaporation and sedimentation

Rezaei, majid and Netz, Roland R. (2021) Airborne virus transmission via respiratory droplets: Effects of droplet evaporation and sedimentation. ScienceDirect, 55 . ISSN 101471

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Official URL: https://doi.org/10.1016/j.cocis.2021.101471

Abstract

Airborne transmission is considered as an important route for the spread of infectious diseases, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and is primarily determined by the droplet sedimentation time, that is, the time droplets spend in air before reaching the ground. Evaporation increases the sedimentation time by reducing the droplet mass. In fact, small droplets can, depending on their solute content, almost completely evaporate during their descent to the ground and remain airborne as so-called droplet nuclei for a long time. Considering that viruses possibly remain infectious in aerosols for hours, droplet nuclei formation can substantially increase the infectious viral air load. Accordingly, the physical-chemical factors that control droplet evaporation and sedimentation times and play important roles in determining the infection risk from airborne respiratory droplets are reviewed in this article.

Item Type:Article
Subjects:Mathematical and Computer Sciences > Mathematics > Applied Mathematics
Divisions:Department of Mathematics and Computer Science > Institute of Mathematics
ID Code:2773
Deposited By: Monika Drueck
Deposited On:23 Feb 2022 14:16
Last Modified:23 Feb 2022 14:16

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