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

被引：75

作者：

Rowe, B. R. ^{[1
]}

Canosa, A. ^{[2
]}

Drouffe, J. M. ^{[3
]}

Mitchell, J. B. A. ^{[4
]}

机构：

[1] Rowe Consulting, 22 Chemin Moines, F-22750 St Jacut De La Mer, France

[2] Univ Rennes, IPR Inst Phys Rennes UMR 6251, CNRS, F-35000 Rennes, France

[3] 31B Chemin Couvent, F-91190 Gif Sur Yvette, France

[4] MERL Consulting SAS, 21 Rue Sergent Guihard, F-35000 Rennes, France

来源：

ENVIRONMENTAL RESEARCH | 2021年 / 198卷

关键词：

COVID-19; Virus airborne transmission; Outdoor versus indoor transmission; Quantitative risk assessment; Meteorological and topographical influence; RISK; DROPLETS; DISPERSION; INFECTION; SPREAD; ENVIRONMENTS; SEASONALITY; EVAPORATION; EVENTS; SIZE;

D O I：

10.1016/j.envres.2021.111189

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 COVID19 spreading in mountain valleys with temperature inversions while at the same time other areas are much less impacted.

引用

页数：11

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