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过氧化消毒的排放及其与口罩表面的相互作用
Pearl Abue1, Nirvan Bhattacharyya1, Mengjia Tang2
1McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States.
室内空间和口罩的过氧化 (H2O2) 消毒可以导致长时间接触消毒剂及其副产品,特别是当口罩被佩戴时. 建议在消毒后定期更换口罩.
科学领域:
- 环境化学环境化学
- 公共卫生 公共卫生
- 化学工程是化学工程的重要组成部分.
背景情况:
- 随着COVID-19的流行,人们越来越多地使用过氧化 (H2O2) 和面膜等消毒剂.
- 之前关于H2O2消毒和口罩使用的研究没有广泛研究排放的副产品.
研究的目的:
- 检查过氧化 (H2O2) 和其副产品度在室内空间,在消毒过程中使用戴口罩的玩偶.
- 评估口罩对随着时间的推移对消毒剂及其副产品暴露水平的影响.
主要方法:
- 模拟室内空间消毒使用H2O2在环境室内与一个戴着面具的热玩偶.
- 使用化学电离质谱仪 (CIMS) 测量H2O2度.
- 使用Vocus质子转移反应飞行时间质谱仪 (Vocus PTR-ToF-MS) 测量消毒副产品,比较口罩内和背后的水平.
主要成果:
- 检测到高度的H2O2和副产品,无论是在室内和背后的面具 2-4小时后消毒.
- 面具对消毒剂及其副产品的度产生了时间依赖的影响.
结论:
- 在空间消毒后,可能会长时间暴露于H2O2及其副产品,特别是在继续使用口罩时.
- 建议在暴露于高度消毒相关化学化合物后,经常更换口罩.
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