Simple quantitative assessment of the outdoor versus indoor airborne transmission of viruses and COVID-19.

Autor: Rowe BR; Rowe Consulting, 22 Chemin des Moines, 22750, Saint Jacut de La Mer, France. Electronic address: bertrand.rowe@gmail.com., Canosa A; CNRS, IPR (Institut de Physique de Rennes)-UMR 6251, Université de Rennes, 35000, Rennes, France., Drouffe JM; 31B Chemin Du Couvent, 91190, Gif-sur-Yvette, France., Mitchell JBA; MERL-Consulting SAS, 21 Rue Sergent Guihard, 35000, Rennes, France.
Jazyk: angličtina
Zdroj: Environmental research [Environ Res] 2021 Jul; Vol. 198, pp. 111189. Date of Electronic Publication: 2021 Apr 16.
DOI: 10.1016/j.envres.2021.111189
Abstrakt: In this paper we develop a simple model of the inhaled flow rate of aerosol particles of respiratory origin i.e. that have been exhaled by other people. A connection is made between the exposure dose and the probability of developing an airborne disease. This allows a simple assessment of the outdoor versus indoor risk of contamination to be made in a variety of meteorological situations. It is shown quantitatively that for most cases, the outdoor risk is orders of magnitude less than the indoor risk and that it can become comparable only for extremely specific meteorological and topographical situations. It sheds light on various observations of COVID-19 spreading in mountain valleys with temperature inversions while at the same time other areas are much less impacted.
(Copyright © 2021 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: