PMID- 35817116
OWN - NLM
STAT- MEDLINE
DCOM- 20220831
LR  - 20220831
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 844
DP  - 2022 Oct 20
TI  - Stagnation trigger changes to tap water quality in winter season: Novel insights 
      into bacterial community activity and composition.
PG  - 157240
LID - S0048-9697(22)04338-8 [pii]
LID - 10.1016/j.scitotenv.2022.157240 [doi]
AB  - The drinking water distribution system is important for water supply and it 
      affects the quality of the drinking water. Indoor pipeline water quality is 
      regulated by physical, hydraulic and biological elements, such as indoor 
      temperature and stagnation. In this work, the effects of indoor heating and 
      overnight stagnation on the variation in bacterial community structure and the 
      total cell count were assessed by full-length 16S rRNA gene sequencing and flow 
      cytometry, respectively. The results exhibited that the average intact cell count 
      was 6.99 x 10(4) cells/mL and the low nucleic acid (LNA) bacteria was 4.48 x 
      10(4) cells/mL after stagnation. The average concentration of total and 
      intracellular adenosine triphosphate (ATP) was 3.64 x 10(-12) gATP/mL and 3.13 x 
      10(-17) gATP/cell in stagnant water, respectively. The growth of LNA cells played 
      a crucial role in increasing ATP. The dominant phylum observed was Proteobacteria 
      (87.21 %), followed by Actinobacteria (8.25 %). Opportunistic pathogens increased 
      the risk of disease in stagnant water (up to 1.2-fold for Pseudomonas sp. and 
      5.8-fold for Mycobacterium sp.). Meanwhile, structural equation model (SEM) and 
      redundancy analysis (RDA) also illustrated that water temperature, residual 
      chlorine and Fe significantly affected the abundance and composition of bacterial 
      community. Taking together, these results show response of tap water quality to 
      overnight stagnation and indoor heating, and provide scientific basis for 
      drinking water security management in winter season.
CI  - Copyright (c) 2022 Elsevier B.V. All rights reserved.
FAU - Zhang, Haihan
AU  - Zhang H
AD  - Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an 
      University of Architecture and Technology, Xi'an, China; Shaanxi Key Laboratory 
      of Environmental Engineering, Xi'an University of Architecture and Technology, 
      Xi'an, China. Electronic address: zhanghaihan@xauat.edu.cn.
FAU - Liu, Xiang
AU  - Liu X
AD  - Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an 
      University of Architecture and Technology, Xi'an, China; Shaanxi Key Laboratory 
      of Environmental Engineering, Xi'an University of Architecture and Technology, 
      Xi'an, China.
FAU - Huang, Tinglin
AU  - Huang T
AD  - Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an 
      University of Architecture and Technology, Xi'an, China; Shaanxi Key Laboratory 
      of Environmental Engineering, Xi'an University of Architecture and Technology, 
      Xi'an, China.
FAU - Ma, Ben
AU  - Ma B
AD  - Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an 
      University of Architecture and Technology, Xi'an, China; Shaanxi Key Laboratory 
      of Environmental Engineering, Xi'an University of Architecture and Technology, 
      Xi'an, China.
FAU - Sun, Weimin
AU  - Sun W
AD  - National-Regional Joint Engineering Research Center for Soil Pollution Control 
      and Remediation in South China, Guangdong Key Laboratory of Integrated 
      Agro-environmental Pollution Control and Management, Institute of 
      Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 
      China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and 
      Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 
      Guangzhou, China.
FAU - Zhao, Kexin
AU  - Zhao K
AD  - Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an 
      University of Architecture and Technology, Xi'an, China; Shaanxi Key Laboratory 
      of Environmental Engineering, Xi'an University of Architecture and Technology, 
      Xi'an, China.
FAU - Sekar, Raju
AU  - Sekar R
AD  - Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, 
      China.
FAU - Xing, Yan
AU  - Xing Y
AD  - Shaanxi Environmental Monitoring Center, Xi'an, China.
LA  - eng
PT  - Journal Article
DEP - 20220709
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Drinking Water)
RN  - 0 (RNA, Ribosomal, 16S)
RN  - 8L70Q75FXE (Adenosine Triphosphate)
SB  - IM
MH  - Adenosine Triphosphate
MH  - Bacteria
MH  - *Drinking Water
MH  - RNA, Ribosomal, 16S/genetics
MH  - Seasons
MH  - Water Microbiology
MH  - *Water Quality
MH  - Water Supply
OTO - NOTNLM
OT  - Bacterial community
OT  - Drinking water
OT  - Full-length 16S rRNA gene sequencing
OT  - Network analysis
OT  - Structural equation model
COIS- Declaration of competing interest The authors declare that they have no competing 
      interests.
EDAT- 2022/07/12 06:00
MHDA- 2022/09/01 06:00
CRDT- 2022/07/11 19:23
PHST- 2022/03/30 00:00 [received]
PHST- 2022/07/02 00:00 [revised]
PHST- 2022/07/04 00:00 [accepted]
PHST- 2022/07/12 06:00 [pubmed]
PHST- 2022/09/01 06:00 [medline]
PHST- 2022/07/11 19:23 [entrez]
AID - S0048-9697(22)04338-8 [pii]
AID - 10.1016/j.scitotenv.2022.157240 [doi]
PST - ppublish
SO  - Sci Total Environ. 2022 Oct 20;844:157240. doi: 10.1016/j.scitotenv.2022.157240. 
      Epub 2022 Jul 9.