Search for dissertations about: "miljökemi"

Showing result 6 - 10 of 264 swedish dissertations containing the word miljökemi.

  2. 6. Metabolism of some polychlorinated biphenyl and polybrominated diphenyl ether congeners in the rat

    Author : Anna Sandholm; Bert-Ove Lund; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Miljökemi; Environmental Chemistry; miljökemi;

    Abstract : For the understanding of the metabolic fate of xenobiotics, in vivo studies are needed. In this thesis the metabolism of CB-28 and CB-77 and BDE-209 in the rat are determined. In addition, pharmacokinetic studies of CB-28 and BDE- 209 are included. The compounds were radiolabelled and their excretion and tissue distribution determined. READ MORE

  4. 7. Identification and origin of potential background carcinogens : endogenous isoprene and oxiranes, dietary acrylamide

    Author : Eden Tareke; Rafter Joseph; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Miljökemi; Environmental Chemistry; miljökemi;

    Abstract : The primary aims of this thesis are to discover carcinogens in the general population by identification of products of reaction with hemoglobin (Hb adducts) in blood from humans without known exposure, and tracing the origin of the adducts. Chemicals and/or their metabolites forming Hb adducts mostly also react with DNA and may thus cause mutations, a key event in carcinogenesis. READ MORE

  5. 8. Synthesis and characterization of highly polybrominated diphenyl ethers

    Author : Daniel Teclechiel; Göran Marsh; Vladimir Nikiforov; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Miljökemi; Environmental Chemistry; miljökemi;

    Abstract : Polybrominated diphenyl ethers (PBDEs) make up an important class of brominated flame retardants. The present production is mainly concentrated to DecaBDE but until recently also a significant production of PentaBDE and OctaBDE took place, leaving us with a large number of different PBDE congeners. READ MORE

  6. 9. Chemical reactivities as a mirror of environmental transformations - method development and assessment of some selected organohalogens

    Author : Lisa Granelli; Åke Bergman; Johan Eriksson; Roland Kallenborn; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Miljökemi; miljökemi; Environmental Chemistry;

    Abstract : The assement of chemical persistence is an important part of legislative protection of the environment and human health. Of the vast number of chemicals on the market today few have been properly assessed. READ MORE

  7. 10. Assessment of Environmental Pollutants in Humans from Four Continents : Exposure levels in Slovakia, Guinea-Bissau, Nicaragua and Bangladesh

    Author : Linda Linderholm; Åke Bergman; Maria Athanasiadou; Kristina Jakobsson; Myrto Petreas; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; POPs; PCB; DDT; PBDE; HCH; metabolites; human exposure; children s exposure; placental transfer; Environmental chemistry; Miljökemi; miljökemi; Environmental Chemistry;

    Abstract : Humans are continuously exposed to complex mixtures of anthropogenic chemicals. This thesis focus on human exposure to persistent organic pollutants (POPs). POPs ability to bioaccumulate and biomagnify together with the extensive historical use of POPs in e.g. READ MORE