论文标题
发声响度对室内空间中的Covid-19传播的影响
The Impact of Vocalization Loudness on COVID-19 Transmission in Indoor Spaces
论文作者
论文摘要
在室内狭窄的空间中，有几次与发声相关的Covid-19爆发与发声有关。在这里，我们通过呼气颗粒的发射与声音的平均响度和可变的房间通风率对空间内疾病传播的风险进行建模。该模型表明，平均发声强度的6个贝贝尔的降低会导致气溶胶传输概率的降低相当于使房间通风率加倍。结果表明，公共卫生当局应考虑在高风险的室内环境中实施“安静区域”，例如医院候诊室或餐饮设施，以减轻Covid-19和其他空中呼吸道疾病的传播。
There have been several documented outbreaks of COVID-19 associated with vocalization, either by speech or by singing, in indoor confined spaces. Here, we model the risk of in-room airborne disease transmission via expiratory particle emission versus the average loudness of vocalization and for variable room ventilation rates. The model indicates that a 6-decibel reduction in average vocalization intensity yields a reduction in aerosol transmission probability equivalent to doubling the room ventilation rate. The results suggest that public health authorities should consider implementing "quiet zones" in high-risk indoor environments, such as hospital waiting rooms or dining facilities, to mitigate transmission of COVID-19 and other airborne respiratory diseases.
