后COVID-19通风措施对小学室内空气质量的影响
Piet Eichholtz1, Nils Kok1, Xudong Sun1
1School of Business and Economics, Maastricht University, Tongersestraat 53, 6211 LM Maastricht, The Netherlands.
PNAS nexus
|December 25, 2023
概括
机械通风改善了小学室内空气质量 (IAQ),但COVID-19后的措施更加强了自然通风 (NV) 系统,表明了行为转变. 这些措施的有效性可能会随着时间的推移而下降,特别是在NV教室.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 建筑科学 建筑科学
背景情况:
- 随着COVID-19的流行,室内空气质量 (IAQ) 和建筑通风在学校等密集的空间中发挥的关键作用得到了凸显.
- 公共实体正在增加对通风系统的投资,但它们对IAQ和乘客行为的实际影响仍未得到充分研究.
研究的目的:
- 评估小学建筑通风系统的有效性,使用外源性流行病相关的学校关闭和通风政策变化.
- 研究通风策略对室内空气质量指标的影响以及潜在的行为适应.
主要方法:
- 在荷兰27所小学252个教室中利用独特的传感器网络,从2018年到2022年监测二氧化碳和细颗粒水平.
- 采用固定效应识别策略来比较自然和机械通风系统之间的IAQ差异.
- 分析了高频数据,以评估学校重新开学前后通风措施的有效性.
主要成果:
- 机械通风的教室在降低二氧化碳和细颗粒度方面表现出卓越的表现.
- 在COVID-19后的通风措施对自然通风 (NV) 课堂产生了更明显的积极影响,这表明行为调整.
- 研究了长期有效性,观察了潜在的衰变和显著的季节性变化,特别是在NV教室,与热舒适性权衡有关.
结论:
- 机械通风对于在小学教室中保持更好的IAQ是有效的.
- 响应通风政策的行为变化可以显著影响IAQ,特别是在自然通风的环境中.
- 通风策略的长期有效性受到腐蚀和季节性影响,需要适应性管理以获得最佳的IAQ和热舒适性.
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