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Assessment of source and treated water quality in seven drinking water treatment plants by in vitro bioassays – Oxidative stress and antiandrogenic effects after artificial infiltration.

Oskarsson, Agneta and Rosenmai, Anna and Mandava, Geeta and Johannisson, Anders and Holmes, Andrew and Tröger, Rikard and Lundqvist, Johan (2021). Assessment of source and treated water quality in seven drinking water treatment plants by in vitro bioassays – Oxidative stress and antiandrogenic effects after artificial infiltration. Science of the Total Environment. 758 , 144001
[Research article]

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Abstract

Drinking water quality and treatment efficacy was investigated in seven drinking water treatment plants (DWTPs), using water from the river Göta Älv, which also is a recipient of treated sewage water. A panel of cell-based bioassays was used, including measurements of receptor activity of aryl hydrocarbon (AhR), estrogen (ER), androgen (AR), peroxisome proliferator-activated receptor alpha (PPARα) as well as induction of oxidative stress (Nrf2) and micronuclei formation. Grab water samples were concentrated by solid phase extraction (SPE) and water samples were analyzed at a relative enrichment factor of 50. High activities of AhR, ER and AR antagonism were present in WWTP outlets along the river. Inlet water from the river exhibited AhR and AR antagonistic activities. AhR activity was removed by DWTPs using granulated activated carbon (GAC) and artificial infiltration. AR antagonistic activity was removed by the treatment plants, except the artificial infiltration plant, which actually increased the activity. Furthermore, treated drinking water from the DWTP using artificial infiltration exhibited high Nrf2 activity, which was not found in any of the other water samples. Nrf2 activity was found in water from eight of the 13 abstraction wells, collecting water from the artificial infiltration. No genotoxic activity was detected at non-cytotoxic concentrations. No Nrf2 or AR antagonistic activities were detected in the inlet or outlet water after the DWTP had been replaced by a new plant, using membrane ultrafiltration and GAC. Neither target chemical analysis, nor chemical analysis according to the drinking water regulation, detected any presence of chemicals, which could be responsible of the prominent effects on oxidative stress and AR antagonistic activity in the drinking water samples. Thus, bioanalysis is a useful tool for detection of unknown hazards in drinking water and for assessment of drinking water treatments.

Authors/Creators:Oskarsson, Agneta and Rosenmai, Anna and Mandava, Geeta and Johannisson, Anders and Holmes, Andrew and Tröger, Rikard and Lundqvist, Johan
Title:Assessment of source and treated water quality in seven drinking water treatment plants by in vitro bioassays – Oxidative stress and antiandrogenic effects after artificial infiltration.
Series Name/Journal:Science of the Total Environment
Year of publishing :2021
Volume:758
Article number:144001
Number of Pages:13
ISSN:0048-9697
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 208 Environmental Biotechnology > Water Treatment
Keywords:Bioanalysis, Drinking water, Effect-based analysis, Nrf2, Endocrine disruption, Aryl hydrocarbon receptor
URN:NBN:urn:nbn:se:slu:epsilon-p-109623
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109623
Additional ID:
Type of IDID
DOI10.1016/j.scitotenv.2020.144001
Web of Science (WoS)000605623800139
ID Code:22126
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(VH) > Department of Biomedical Science and Veterinary Public Health
(VH) > Dept. of Clinical Sciences
(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:05 Feb 2021 03:43
Metadata Last Modified:05 Feb 2021 06:01

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