从人类发声和吹风乐器演奏中产生的大颗粒排放
Ky Tanner1, Kristen M Good2,3, Dan Goble4
1Department of Mechanical Engineering, Colorado State University, Fort Collins, Colorado 80523, United States.
Environmental science & technology
|October 5, 2023
概括
说话和唱歌产生了最大的呼吸道颗粒. 面罩在唱歌期间显著减少颗粒物排放,而仪器钟盖对大颗粒物释放的影响最小.
科学领域:
- 气溶科学是一门气溶科学.
- 呼吸系统健康 呼吸系统健康
- 传染病的传播是传染病的传播.
背景情况:
- 在发声和演奏乐器时排放的大型唾液颗粒 (>35微米) 与呼吸系统疾病的传播有关.
- 关于这些大颗粒的排放速率和尺寸分布的研究有限.
研究的目的:
- 量化来自说话,唱歌和吹风乐器演奏的大颗粒物排放.
- 评估面罩和罩在减轻这些排放方面的有效性.
主要方法:
- 70名志愿者在进行声乐任务和吹风乐器演奏时,特征是大颗粒排放 (dp > 35μm).
- 测量粒子计数排放率和尺寸分布.
- 在唱歌期间使用面罩和在演奏乐器时使用钟罩的评估缓解效果.
主要成果:
- 谈话产生了最高的排放率 (95.1分-1),其次是唱歌,然后是乐器演奏 (3.8分-1).
- 年龄,性别,二氧化碳排放量和噪音没有预测大颗粒排放量.
- 面罩减少了92.5%的歌声排放;钟盖对仪器排放的影响最小.
结论:
- 语音活动,特别是说话,是呼吸道大颗粒的重要来源.
- 面罩在歌唱期间有效减少大颗粒物排放.
- 可能需要进一步的研究来了解影响大颗粒产生和传播的因素.
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