论文标题
通过风仪分散的呼吸颗粒的实验测量以及对感染传播的相关风险的分析
Experimental measurement of respiratory particles dispersed by wind instruments and analysis of the associated risk of infection transmission
论文作者
论文摘要
诸如唱歌或演奏风乐器释放呼吸道颗粒的活动可能包含病原体，从而构成感染传播的风险。在这里，我们报告了31位健康音乐家的呼气颗粒的尺寸分布，数量和体积浓度的测量值，并在严格控制的洁净室环境中使用气溶胶光谱和在线全息图演奏20种风仪。我们发现，与说话或唱歌相比，演奏风乐器的空气传播风险要低。我们将其归因于以下事实：风仪的谐振器充当直径> 10 $ $ m的颗粒过滤器。我们还测量了可以用作仪器掩模的不同类型过滤器的尺寸依赖性过滤性能。基于这些测量值，我们计算了在不同的近场和远场场景中，有或没有掩盖和/或距离的不同近场和远场场景中空中传播SARS-COV-2的风险。我们得出的结论是，在所有有可能具有传染性的情况下，防止这种疾病的空气传播的唯一安全措施是使用适合且良好的过滤口罩为乐器和易感人使用。
Activities such as singing or playing a wind instrument release respiratory particles into the air that may contain pathogens and thus pose a risk for infection transmission. Here we report measurements of the size distribution, number, and volume concentration of exhaled particles from 31 healthy musicians playing 20 types of wind instruments using aerosol spectrometry and in-line holography in a strictly controlled cleanroom environment. We find that playing wind instruments carries a lower risk of airborne disease transmission than speaking or singing. We attribute this to the fact that the resonators of wind instruments act as filters for particles >10 $μ$m in diameter. We have also measured the size-dependent filtering properties of different types of filters that can be used as instrument masks. Based on these measurements, we calculated the risk of airborne transmission of SARS-CoV-2 in different near- and far-field scenarios with and without masking and/or distancing. We conclude that in all cases where there is a possibility that the musician is infectious, the only safe measure to prevent airborne transmission of the disease is the use of well-fitting and well-filtering masks for the instrument and the susceptible person.
