| Autor: |
Ajay Vikram Singh, Aaron Katz, Romi Singh Maharjan, Ashish K. Gadicherla, Martin Heinrich Richter, Jan Heyda, Pablo del Pino, Peter Laux, Andreas Luch |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
The Science of the total environment. |
| ISSN: |
1879-1026 |
| Popis: |
Severe acute respiratory syndrome coronavirus 2, abbreviated as SARS-CoV-2, has been associated with the transmission of infectious COVID-19 disease through breathing and speech droplets emitted by infected carriers including asymptomatic cases. As part of SARS-CoV-2 global pandemic preparedness, we studied the transmission of aerosolized air mimicking the infected person releasing speech aerosol with droplets containing CorNPs using a vibrating mesh nebulizer as human patient simulator. Generally speech produces nanoaerosols with droplets of5 μm in diameter that can travel distances longer than 1 m after release. It is assumed that speech aerosol droplets are a main element of the current Corona virus pandemic, unlike droplets larger than 5 m, which settle down within a 1 m radius. There are no systemic studies, which take into account speech-generated aerosol/droplet experimental validation and their aerodynamics/particle kinetics analysis. In this study, we cover these topics and explore role of residual water in aerosol droplet stability by exploring drying dynamics. Furthermore, a candle experiment was designed to determine whether air pollution might influence respiratory virus like nanoparticle transmission and air stability. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect