Dynamics of the Microbial Community and Opportunistic Pathogens after Water Stagnation in the Premise Plumbing of a Building

In premise plumbing, microbial water quality may deteriorate under certain conditions, such as stagnation. Stagnation results in a loss of disinfectant residual, which may lead to the regrowth of microorganisms, including opportunistic pathogens. In the present study, microbial regrowth was investig...

Full description

Saved in:
Bibliographic Details
Published in:Microbes and Environments 2022, Vol.37(1), pp.ME21065
Main Authors: Rahmatika, Iftita, Kurisu, Futoshi, Furumai, Hiroaki, Kasuga, Ikuro
Format: Article
Language:English
Subjects:
drinking water
microbial regrowth
opportunistic pathogens
premise plumbing
Regular Paper
water stagnation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In premise plumbing, microbial water quality may deteriorate under certain conditions, such as stagnation. Stagnation results in a loss of disinfectant residual, which may lead to the regrowth of microorganisms, including opportunistic pathogens. In the present study, microbial regrowth was investigated at eight faucets in a building over four seasons in one year. Water samples were obtained before and after 24 h of stagnation. In the first 100‍ ‍mL after stagnation, total cell counts measured by flow cytometry increased 14- to 220-fold with a simultaneous decrease in free chlorine from 0.17–0.36‍ ‍mg L–1 to
ISSN:1342-6311
1347-4405
DOI:10.1264/jsme2.ME21065