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量化微生物风险评估,量化紫外线杀菌辐射对COVID-19传播的影响

Ernest R Blatchley^1,2, Haiying Cui²

¹Lyles School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, Indiana 47907-2051, United States.

Environmental science & technology

|November 3, 2023

概括

定量微生物风险评估 (QMRA) 有效地评估了室内空气消毒的紫外线杀菌辐射 (UVGI). 紫外线GI系统在控制SARS-CoV-2传播方面表现有前途,特别是在较低的排放率下.

科学领域:

环境微生物学环境微生物学
公共卫生工程公共卫生工程
传染病建模传染病模型

背景情况:

室内空气质量对公共健康至关重要.
紫外线杀菌辐射 (UVGI) 是一种用于空气消毒的技术.
控制像SARS-CoV-2这样的空气传播病原体需要有效的缓解策略.

研究的目的:

将定量微生物风险评估 (QMRA) 作为评估UVGI有效性的工具.
使用UVGI开发QMRA框架来控制SARS-CoV-2感染.
建立UVGI/HVAC系统参数与疾病传播风险之间的定量联系.

主要方法:

开发一个QMRA框架,包括问题制定,暴露评估和健康影响的子模型.
在各种条件下模拟UVGI系统的性能.
对影响SARS-CoV-2传播风险的因素的分析.

主要成果:

在低至中等的病毒排放率下,UVGI系统可以有效地降低SARS-CoV-2感染风险.
疾病传播受到病原体排放率,UVGI输出功率和配置,UV-C源和HVAC系统特征的显著影响.
该QMRA框架量化了UVGI和HVAC系统对疾病传播风险的影响.

结论:

QMRA是评估室内空气消毒UVGI有效性的一个有价值的工具.
紫外线GI系统提供了一种可行的策略,以减轻空气传播病原体的传播.
该QMRA框架可适应其他空气传播病原体,并有助于UVGI系统的设计和验证.

关键词:

这就是SARS-CoV-2病毒.空气消毒的消毒方法在空气中传播的病原体.紫外线是一种紫外线.

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