Shift to remote learning degrades water quality in buildings
Shift to remote learning degrades water quality in buildings
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DOI：
10.1002/aws2.1316
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发表时间：
2022-11-01
期刊：
影响因子：
--
通讯作者：
Boyer, Treavor H.
中科院分区：
文献类型：
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作者：
Aden, Katelin;Boyer, Treavor H.
由于远程工作/学习，商业和机构建筑现在经历数周甚至数月的占用率低于正常水平，这导致用水量减少，并有可能对水质产生不利影响。这项研究监测了几个月的低于正常占用率，然后几个月的正常占用率在多个大学建筑的水质变化。水中游离氯、铜和细胞ATP的水平在建筑物内和建筑物之间各不相同。使用Wi-Fi活动作为建筑物占用率的替代品，水中的游离氯浓度随着Wi-Fi计数的增加而增加。与正常入住率相比，当入住率低于正常值时，建筑物水中的铜浓度较高，并且随着Wi-Fi计数的增加，铜浓度降低。在整个研究过程中，在使用时冲洗夹具降低了铜和细胞ATP的浓度，并增加了游离氯的浓度。
Commercial and institutional buildings now experience weeks and even months with below-normal occupancy due to remote work/learning, which results in reduced water use and has the potential to adversely impact water quality. This study monitored the variations in water quality in multiple university buildings during several months of below-normal occupancy followed by several months of normal occupancy. The levels of free chlorine, copper, and cellular ATP in water varied within buildings and between buildings. Using Wi-Fi activity as a surrogate for building occupancy, the free chlorine concentration in water increased as Wi-Fi counts increased. The copper concentration in building water was higher when the occupancy was below-normal compared with normal occupancy, and the copper concentration decreased as Wi-Fi counts increased. Throughout the study, flushing a fixture at the time of use decreased the concentrations of copper and cellular ATP and increased the concentration of free chlorine.