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Hazard assessment of sediments from a wetland system for treatment of landfill leachate using bioassays
Mälardalen University, School of Business, Society and Engineering.
Mälardalen University, School of Business, Society and Engineering. (MERO)ORCID iD: 0000-0002-9563-9688
Örebro University, Sweden.
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2013 (English)In: Ecotoxicology and Environmental Safety, ISSN 0147-6513, E-ISSN 1090-2414, Vol. 97, 255-262 p.Article in journal (Refereed) Published
Abstract [en]

Four bioassays were used in this study for the hazard assessment of sediments from sediment traps and several ponds in a treatment wetland for landfill leachate at Atleverket, Sweden. In the 6-day solid phase microbiotest with the sediment-dwelling crustacean Heterocypris incongruens both acute and chronic effects were observed with a gradual decrease and loss of toxicity with treatment in the wetland system. Some samples showed a low toxicity in porewater and only one sample was weakly toxic in the whole sediment test when assessed with Aliivibrio fischeri (Vibro fischeri). No genotoxicity was detected in the umu test. The toxicity response in the H4IIE- luc test evaluating the presence of dioxin-like compounds was considerably higher in the samples from the sediment traps. The hazard of the sediment therefore appears to be highest in the sediment traps and pond 1 with the methods employed. The result indicates that the wetland system has a design supporting the concentration and sequestration of toxic substances in the first part of the wetland. Based upon the results we suggest that hazard assessment of sediments from other treatment wetlands for landfill leachate should be conducted.

Place, publisher, year, edition, pages
2013. Vol. 97, 255-262 p.
Keyword [en]
Bioassay, Genotoxicity, Landfill leachate, Sediment, Toxicity, Treatment wetlands
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-21690DOI: 10.1016/j.ecoenv.2013.08.010ISI: 000325039400034Scopus ID: 2-s2.0-84884210539OAI: oai:DiVA.org:mdh-21690DiVA: diva2:651922
Available from: 2013-09-27 Created: 2013-09-27 Last updated: 2016-03-10Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • vancouver
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  • de-DE
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