研究团队发现,参与者的结果各有不同,但是用最低音量唱歌和说话的人产生的气溶胶和呼吸时产生的气溶胶数量相近。
But when the team asked participants to recite Happy Birthday at different volumes, they found the loudest singing and speaking – 90-100dB – produced about 36 and 24 times the mass of aerosols respectively as generated by breathing.
但是当研究团队请参与者用不同音量唱《生日快乐》这首歌时,他们发现用最大音量(90到100分贝)唱歌和说话所产生的气溶胶分别是呼吸所产生的气溶胶的36倍和24倍。
"The volume of the activity, whether it is speaking or singing softly or speaking or singing loudly, that is really the main factor in governing the aerosol mass that is generated,” said Reid, adding that while singing generates a slightly higher mass of aerosols than speaking, at least when loud, the difference is very small compared with the effect of volume.
里德说:“无论是轻声讲话或唱歌还是大声讲话或唱歌,音量确实是决定产生的气溶胶总量的主要因素。”他补充道,尽管唱歌时产生的气溶胶总量比讲话时产生的气溶胶总量略高(至少在大声唱歌和讲话时是如此),二者区别和音量引起的区别相比微乎其微。
Co-author Declan Costello, an ear, nose and throat surgeon at Wexham Park hospital, noted other factors, including the size of the space and ventilation and duration of loud vocalisation, play an important role in potential infection risk.
【研究:轻声歌唱和讲话能降低新冠病毒传播风险】相关文章:
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