Sökning: "PCBs"

Visar resultat 41 - 45 av 116 avhandlingar innehållade ordet PCBs.

  1. 41. Fewer kids not always by choice : the link between endocrine-disrupting chemicals and female reproductive health

    Författare :Richelle Duque Björvang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Fertility rates are declining from five children per woman in the 1950s to less than three children per woman in 2019. While this is partly due to women choosing to have fewer kids, there are growing evidence that endocrine-disrupting chemicals (EDCs) in the environment may play a role in this phenomenon. LÄS MER

  3. 42. Characterizing life-long human exposure to persistent environmental pollutants

    Författare :Charlotte Bergkvist; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Humans are exposed to a variety of potentially harmful contaminants on a daily basis. Characterizing the exposure in different subgroups of the general population is important in order to protect public health sufficiently. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  5. 44. Association of hydrophobic organic compounds to organic material in the soil system

    Författare :Silviu-Laurentiu Badea; Mats Tysklind; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; HOCs; Organic Matter; Clay; DOM; Environmental Science; miljövetenskap;

    Sammanfattning : Contaminated soils and sediments have been identified as significant secondary sources of organic contaminants.  Leaching tests may be useful tools to estimate the mobility of contaminants via the water phase and thereby the risk for groundwater and surface water contamination. LÄS MER

  7. 45. Liver tumour promoting effects by polychlorinated biphenyls

    Författare :Marie Haag Grönlund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :tumour promotion; altered hepatic foci; rat liver; PCB; potency; TEF; interactions; antagonism; biologically based cancer growth models; TCDD;

    Sammanfattning : PCBs cause a number of toxic effects and are present in a variety of biological samples including fish, meat and diary products. Cancer is a serious toxic effect by PCBs that has been observed in animal experiments but the knowledge about PCB induced carcinogenicity is still scarce. LÄS MER