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Sökning: LAR1:umu > (2000-2004) > Tysklind Mats > Engwall Magnus 1965 > Biological and Chem...

  • Hollert, HennerDepartment of Zoology, University of Heidelberg, Im Neuenheimer Feld 230, Heidelberg, Germany (författare)

Biological and Chemical Determination of Dioxin-like Compounds in Sediments by Means of a Sediment Triad Approach in the Catchment Area of the River Neckar

  • Artikel/kapitelEngelska2002

Förlag, utgivningsår, omfång ...

  • 2002
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:umu-8850
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-8850URI
  • https://doi.org/10.1023/A:1020549103898DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-41357URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • To evaluate the sediment quality of selected sites in the catchment area of the River Neckar, an integrative assessment approach was used to assess the ecological hazard potential of dioxin-like sediment compounds. The approach is based on 7-ethoxyresorufin-O -deethylase (EROD) induction in embryonic chicken liver culture and comprehensive chemical analyses of polycyclic aromatic hydrocarbons (priority PAHs according to the US Environmental Protection Agency). The majority of the sediment extracts exhibited high potencies as EROD-inducers. In one sediment sample, which was influenced by a sewage treatment plant, a very high concentration of 930 ng bioassay 2,3,7,8-tetrachlorodibenzo-p -dioxin (TCDD) equivalents (bio-TEQs )/g organic carbon could be determined. However, in none of the samples, more than 6% of the EROD-inducing potency could be explained by the PAHs analyzed chemically. Thus, non-analyzed compounds with EROD-inducing potency were present in the extracts. A fractionation of sediment samples according to pH allowed to localize the major part of EROD-inducing compounds in the neutral fractions. However, a significant portion of the EROD induction could also be explained by the acidic fractions. Following the concept of the Sediment Quality Triad according to Chapman, in situ alterations of macrozoobenthos were examined. A comparison of the results predicted by the EROD assay and chemical analyses with alterations in situ , as measured by means of the saprobic index and the ecotoxicological index according to Carmargo, revealed a high ecological relevance of the results of bioassays and chemical analyses for major sites.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Dürr, MatthiasDepartment of Hygiene, Halle, Germany,Department of hygiene (författare)
  • Olsman, Helena,1976-Örebro universitet,Institutionen för naturvetenskap och teknik,MTM(Swepub:oru)hon (författare)
  • Halldin, KristerUmeå universitet,Kemiska institutionen,Department of Environmental Toxicology, Uppsala, Sweden,IMM (författare)
  • van Bavel, Bert,1963-Örebro universitet,Institutionen för naturvetenskap och teknik,Department of Chemistry, Environmental Chemistry, Umeå, Sweden,MTM(Swepub:oru)bvl (författare)
  • Brack, WernerUFZ Centre for Environmental Research Leipzig-Halle, Leipzig, Germany,UFZ Center for Environmental Research (författare)
  • Tysklind, MatsUmeå universitet,Kemiska institutionen,Department of Environmental Toxicology, Uppsala, Sweden,Department of chemistry(Swepub:umu)maty0001 (författare)
  • Engwall, Magnus,1965-Örebro universitet,Institutionen för naturvetenskap och teknik,MTM(Swepub:oru)mel (författare)
  • Braunbeck, ThomasDepartment of Hygiene, Halle, Germany (författare)
  • Department of Zoology, University of Heidelberg, Im Neuenheimer Feld 230, Heidelberg, GermanyDepartment of Hygiene, Halle, Germany (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Ecotoxicology11:5, s. 323-360963-92921573-3017

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