Recovery of microbiological quality of long-term stagnant tap water in university buildings during the COVID-19 pandemic.

ABSTRACT: Stagnant water can cause water quality deterioration and, in particular, microbiological contaminations, posing potential health risks to occupants. University buildings were unoccupied with little water usage during the COVID-19 pandemic. It's an opportunity to study microbiological quality of long-term stagnant water (LTSW) in university buildings. The tap water samples were collected for three months from four types of campus buildings to monitor water quality and microbial risks after long-term stagnation. Specifically, the residual chlorine, turbidity, and iron/zinc were disqualified, and the heterotrophic plate counts (HPC) exceeded the Chinese national standard above 100 times. It took 4-54 days for these parameters to recover to the routine levels. Six species of pathogens were det

SUBMITTER: Ye C 

PROVIDER: S-EPMC9752782 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature