基于静态和动态情景的隔离病房空气通风的生物气溶风险评估
Zongkun Li1, Xiaoqian Ma1, Yanfen Liao1
1School of Electric Power, South China University of Technology, Guangzhou 510640, China; Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, Guangzhou 510640, China.
Journal of hazardous materials
|March 25, 2025
概括
空气窗通风 (ACV) 通过改善生物气溶的去除,显著降低了隔离病房的卫生保健工作者 (HCW) 感染风险. 最佳的ACV设置最大限度地减少悬浮的病毒载体颗粒,并保护HCW免受空气中的病原体.
科学领域:
- 环境卫生工程 环境卫生工程
- 传染病控制和控制传染病
- 气溶科学 气溶科学
背景情况:
- 在隔离病房的医疗保健工作者 (HCW) 面临着病毒携带生物气溶的高感染风险.
- 空气窗通风 (ACV) 是一种潜在的策略,可以减轻空气传播感染的传播.
研究的目的:
- 量化评估ACV在减少生物气溶扩散和医疗保健工作者感染风险方面的有效性.
- 将ACV性能与传统向下通风进行比较,并分析影响因素.
主要方法:
- 利用了改进的基于拉格朗的韦尔斯-莱利模型与数值模拟相结合.
- 模拟生物气溶扩散从一个说话的患者在各种ACV配置下.
- 量化预测的医疗保健工作者感染风险.
主要成果:
- 与向下通风相比,ACV显示出优越的生物气溶去除和HCW保护.
- 坐姿导致生物气溶度和感染风险高于躺姿.
- 增加供应速度在降低风险方面比增加空气窗宽度更有效.
结论:
- 在医疗机构中,ACV是一种有效的方法来减少空气传播病原体的暴露.
- 优化ACV参数,如速度和宽度,并考虑患者的位置,提高了保护.
- ACV的设计,特别是长度与宽度的比率,会影响生物气溶控制的有效性.
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