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Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nano+Lett 2020 ; 20 (10): 7744-7750 Nephropedia Template TP
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COVID-19: Effects of Environmental Conditions on the Propagation of Respiratory Droplets #MMPMID32909761
Zhao L; Qi Y; Luzzatto-Fegiz P; Cui Y; Zhu Y
Nano Lett 2020[Oct]; 20 (10): 7744-7750 PMID32909761show ga
As coronavirus disease 2019 (COVID-19) continues to spread, a detailed understanding on the transmission mechanisms is of paramount importance. The disease transmits mainly through respiratory droplets and aerosol. Although models for the evaporation and trajectory of respiratory droplets have been developed, how the environment impacts the transmission of COVID-19 is still unclear. In this study, we investigate the propagation of respiratory droplets and aerosol particles generated by speech under a wide range of temperatures (0-40 degrees C) and relative humidity (0-92%) conditions. We show that droplets can travel three times farther in low-temperature and high-humidity environment, whereas the number of aerosol particles increases in high-temperature and low-humidity environments. The results also underscore the importance of proper ventilation, as droplets and aerosol spread significantly farther in airstreams. This study contributes to the understanding of the environmental impact on COVID-19 transmission.
Nano+Lett 2020 ; 20 (10): 7744-7750
