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Glass-bottled drinking water: a time capsule to study the historic presence of hazardous chemicals using effect-based methods

Lundqvist, Johan and Persson, Kenneth M. and Oskarsson, Agneta (2021). Glass-bottled drinking water: a time capsule to study the historic presence of hazardous chemicals using effect-based methods. Environmental Sciences Europe. 33 , 34
[Research article]

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Background Contamination of drinking water by hazardous chemicals can be associated with human health risks. Recent studies using effect-based in vitro methods have demonstrated that a large part of the observed toxic effects are caused by unknown chemicals. In this study, we have used a panel of effect-based methods to study the presence of chemical contaminants in a unique material; glass-bottled Swedish tap water collected during the 1990s. These water samples were compared to drinking water from the same source waters and drinking water facilities, yet collected about 25 years later, in 2020. Results Samples were concentrated by solid phase extraction and evaluated for the following activities; estrogen receptor activity, androgen receptor activity, antiandrogenic activity, aryl hydrocarbon receptor activity, and oxidative stress response. We observed aryl hydrocarbon receptor activities in almost all studied samples and estrogen receptor activity in three out of ten studied samples. No activities were observed for androgen receptor activity, antiandrogenic activity or oxidative stress response. In general, observed activities were more frequent and higher in the water samples collected during the 1990s as compared to the corresponding samples collected in 2020. Conclusions This study demonstrates that it is possible to conduct an effect-based evaluation of the presence of hazardous chemicals in drinking water, with as small starting volume as 330 mL, by using miniaturized bioassays. Further, by comparing the glass-bottled water samples with newly collected water samples from the same drinking water treatment facilities, our results indicate that the presence of aryl hydrocarbon receptor and estrogen receptor activating compounds in the drinking water has decreased over the approximately quarter of a century that is separating the two sampling occasions. This difference could be due to improved raw water quality and/or improved treatment efficiency in the treatment plants.

Authors/Creators:Lundqvist, Johan and Persson, Kenneth M. and Oskarsson, Agneta
Title:Glass-bottled drinking water: a time capsule to study the historic presence of hazardous chemicals using effect-based methods
Series Name/Journal:Environmental Sciences Europe
Year of publishing :2021
Article number:34
Number of Pages:9
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 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
Keywords:Effect-based methods, Drinking water, Estrogen receptor activity, Aryl hydrocarbon receptor activity, Bottled water
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Additional ID:
Type of IDID
Web of Science (WoS)000630731300001
ID Code:23109
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Department of Biomedical Science and Veterinary Public Health
Deposited By: SLUpub Connector
Deposited On:08 Apr 2021 08:03
Metadata Last Modified:13 Sep 2022 19:57

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