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评估与建筑物中使用水原子化淋浴系统相关的健康风险
Hélène Niculita-Hirzel1, Marian Morales1, Priyanka Parmar1
1Department of Occupational Health and Environment, Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Epalinges CH-1066, Switzerland.
Water research
|August 6, 2023
概括
吸水式淋浴头可以减少水和能源的使用,但可能会改变气溶排放. 研究发现,它们释放的可培养细菌较少,包括Legionella pneumophila,并且没有空气传播的细菌,这表明需要对健康风险进行评估.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 公共卫生 公共卫生
背景情况:
- 气候变化政策需要减少建筑能源和水消耗.
- 水原子化淋浴头可以节省大量的水和能源.
- 有限的健康风险评估阻碍了采用节水淋浴技术.
研究的目的:
- 评估细菌传播的风险,特别是Legionella pneumophila,从使用水原子化 (ECO) 和连续流 (STA) 淋浴头的淋浴生物膜中传播.
- 为了在各种生物膜条件下比较两个淋浴系统的气溶和生物气溶排放.
主要方法:
- 不同年龄和条件 (受控/不受控制,水硬度) 的培养淋浴软管生物膜.
- 在10分钟的模拟淋浴期间收集和分析了总,可行的和可培养的气溶和生物气溶.
- 量化纳米粒子排放和细菌/Legionella pneumophila的释放.
主要成果:
- 与STA相比,ECO淋浴头释放的纳米颗粒略多 (<0.45微米) 和较少 (>0.5微米).
- 与STA相比,ECO淋浴头在最初的冲水中释放的可培养细菌较少,并且在初始冲水中释放的Legionella pneumophila略少.
- 从任何一个淋浴系统的气溶中都没有检测到可培养的Legionella pneumophila.
结论:
- 水原子化淋浴头可能会改变人类对气溶的暴露,与传统系统不同.
- 评估健康风险对于新的节水淋浴技术至关重要.
- 研究结果支持平衡水/能源节约与用户健康和安全.
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