在绿色建筑中进行风险管理干预的水质权衡
Sayalee Joshi1,2, Rain Richard3, Derek Hogue1
1The School of Sustainable Engineering and the Built Environment, Arizona State University, 660S College Ave, Tempe, AZ 85281, USA.
预先的管道干预措施,如冲洗和提高热水器温度,在减少Legionella pneumophila方面取得了有限的成功. 不完整的实施和短时间的持续强调了需要更全面的水质管理战略.
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:
- 预设的管道系统可以降低水质,导致病原体的健康风险,如Legionella pneumophila和接触污染物.
- 常见的干预措施包括冲洗,热消毒和调节热水器温度.
研究的目的:
- 为了评估冲洗,热水器温度调整和对Legionella pneumophila*殖民建筑物水质的综合干预措施的有效性.
- 在控制管理干预之前和之后监测微生物和物理化学参数.
主要方法:
- 监测的微生物 (可培养的*L. pneumophila*,*L. pneumophila mip*基因,cATP) 和物理化学 (pH,温度,消毒剂残留量,DBPs,重金属) 参数.
- 实施和评估了三个干预措施:冲洗,热水器设置点变化和综合方法.
- 与建筑物占用数据 (Wi-Fi登录) 相关的水质变化.
主要成果:
- 单纯的冲洗显著减少了cATP和L.pneumophila,但增加了,铁和消毒副产品 (DBPs).
- 仅仅是热水器温度的升高导致铜含量增加.
- 联合干预显示和铁的增加,但没有显著减少*L. pneumophila*.
结论:
- 短期或不完全实施的干预措施可能无法充分改善总体的场所管道水质.
- 后勤密集型干预需要开发更有效的,整体的预防和纠正水质管理方法.
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