Search for dissertations about: "bioconcentration"

Showing result 1 - 5 of 12 swedish dissertations containing the word bioconcentration.

  2. 1. Transcriptomics and bioconcentration studies in fish to identify pharmaceuticals of environmental concern

    Author : Filip Cuklev Stern; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; fish; microarray; bioconcentration; pharmaceuticals; wastewater treatment; environment;

    Abstract : Pharmaceuticals are frequently found in the aquatic environment. As they are most often highly biologically active, quite persistent and may accumulate in aquatic organisms, i.e. bioconcentrate, they may pose a risk to non-target organisms. READ MORE

  4. 2. Semipermeable membrane devices in monitoring of organic pollutants in the aquatic environment

    Author : Darius Sabaliunas; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; effect studies; environmental monitoring; organic pollutants; bioconcentration; passive samplers; Semipermeable membrane devices; SPMDs; toxicity; genotoxicity; bioassays; Ecology; Ekologi;

    Abstract : Semipermeable membrane devices (SPMDs) are passive samplers capable of concentrating hydrophobic chemicals from water, sediments, soil and air. They consist of layflat polymeric membrane such as polyethylene containing a thin film of synthetic lipid such as triolein. READ MORE

  5. 3. Uptake and bioaccumulation of ionizable pharmaceuticals in aquatic organisms

    Author : Marja L. Boström; Enhet akvatisk ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Antidepressiva medel; Avloppsvatten; BAF; BCF; Bioackumulation; Biokoncentration; Biomagnifikation; CYP; Extraktionsteknik; HF-LPME; Joniserbara läkemedel; Metabolism; pH; Riskanalys; Tolerans; Antidepressant; BAF; BCF; Bioaccumulation; Bioconcentration; Biomagnification; CYP; Extraction technique; HF-LPME; Ionizable pharmaceutical; Metabolism; pH; Risk assessment; Tolerance; Wastewater;

    Abstract : Pharmaceuticals are found at low concentrations (ng/L) in aquatic environments but bioaccumulation may result in aquatic organisms reaching internal effect levels (µg/L). Environmental hazard assessments include standardized bioaccumulation tests but contrary to the model substances around which the frameworks are built most pharmaceuticals are designed to mimic endogenic chemicals, ionizable, and less lipophilic. READ MORE

  6. 4. The toxicity of perfluoroalkyl acids in zebrafish (Danio rerio)

    Author : Mazhar Ul haq; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Perfluoroalkyl acids (PFAAs) are globally distributed synthetic chemicals. Their unique properties make them widely used, in industry and elsewhere. These are a group of compounds with varying carbon chain lengths and functional groups. The toxicity evaluation of PFAAs is important to better assess their organismal and environmental impact. READ MORE

  7. 5. Endocrine disrupting compounds in effluent waters : Chemical analysis to evaluate exposure of fish

    Author : Maria Pettersson; Lillemor Asplund; Leif Kronberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi;

    Abstract : 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. READ MORE