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Fish bile used to detect estrogenic substances in treated sewage water
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2006 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 366, no 1, 174-186 p.Article in journal (Refereed) Published
Abstract [en]

Endocrine disrupting effects on fish associated with sewage treatment effluents have been demonstrated in several studies. To investigate if the effluents from two modem Swedish sewage treatment plants contained estrogenic substances, juvenile rainbow trout were exposed to sewage water before and after the last treatment step which is a sand filter. As a biomarker for estrogenic effect, vitellogenin was analysed in the blood plasma of the exposed fish. To identify substances possibly responsible for the effect, bile fluid from the exposed fish were analysed with GUMS. Elevated levels of vitellogenin were only seen in the fish exposed at one of the sewage treatment plants, the one with shorter residence time in the biological treatment steps, which suggests that the residence time is of importance for the ability to reduce the amount of estrogenic substances in the sewage water. The highest elevation of vitellogenin was seen in the fish exposed to water before the sand filter, which indicates that the sand filter contributes to further reduction of estrogenic substances in the sewage water. In bile from the same group of fish, considerably higher concentrations of estrone, bisphenol A and 4-nonylphenol (4.0 mu g/g bile, 23 mu g/g bile and 24 mu g/g bile, respectively) were observed compared to bile from control fish (< 0.04 mu g/g bile, 0.21 mu g/g bile, and 3.5 mu g/g bile, respectively). The more potent steroidal estrogens were suggested to be major contributors to the observed estrogenic effect, although xenoestrogens were detected at higher concentrations in the bile fluid.

Place, publisher, year, edition, pages
2006. Vol. 366, no 1, 174-186 p.
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-23049DOI: 10.1016/j.scitotenv.2005.07.005ISI: 000239499200018OAI: oai:DiVA.org:su-23049DiVA: diva2:189978
Available from: 2006-11-23 Created: 2006-11-23 Last updated: 2017-12-13Bibliographically approved
In thesis
1. Endocrine disrupting compounds in effluent waters: Chemical analysis to evaluate exposure of fish
Open this publication in new window or tab >>Endocrine disrupting compounds in effluent waters: Chemical analysis to evaluate exposure of fish
2006 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The aim of this thesis was to investigate if endocrine disruption related to the release of estrogenic and/or androgenic substances via sewage treatment plant and pulp mill effluents is significant in Swedish waters. Chemical analysis of bile fluid in combination with measurement of biomarkers was used for the evaluation of internal exposure and effects in fish.

Exposure to estrogenic substances was demonstrated by pronounced induction of the yolk protein precursor vitellogenin in fish exposed in cages downstream of a small domestic Swedish sewage treatment plant. Estrogenic substances identified in bile from the fish included the natural estrogens, the synthetic estrogen ethinylestradiol and some estrogenic phenols. The bile levels of estrogenic substances corresponded well with the plasma levels of vitellogenin. Significant concentrations of the estrogenic substances were also determined in the effluent water, and it was suggested that the level of ethinylestradiol was sufficient to explain a major part of the observed estrogenicity. Low or no induction of vitellogenin was observed in fish when exposed to final effluent from two modern Swedish sewage treatment plants, and it was concluded that a well functioning biological treatment reduces the amounts of estrogenic substances from the sewage water and that slow sand filtration contributes to further reduction. A field survey along the Baltic Sea coast revealed no signs of estrogenic or androgenic disruption in recipients of sewage treatment plants or pulp mills. This is likely due to efficient water treatment and high dilution rates in the recipients. Endocrine disruption might still be of local concern in receiving waters of less treated effluents that have low dilution rates.

A sensitive method for determination of estrogenic substances in water was developed, which will make it possible to establish bioconcentration relationships between water and fish, and dose-response relationships with biomarkers in fish.

Place, publisher, year, edition, pages
Stockholm: Institutionen för tillämpad miljövetenskap (ITM), 2006. 56 p.
National Category
Chemical Sciences
Identifiers
urn:nbn:se:su:diva-1373 (URN)91-7155-324-X (ISBN)
Public defence
2006-12-15, Nordenskiöldsalen, Geovetenskapens hus, Svante Arrhenius väg 8 C, Stockholm, 10:00
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Available from: 2006-11-23 Created: 2006-11-23 Last updated: 2013-12-10Bibliographically approved

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Adolfsson-Erici, MargarethaAsplund, Lillemor
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