Sökning: "NATURVETENSKAP Kemi Miljökemi"

Visar resultat 1 - 5 av 118 avhandlingar innehållade orden NATURVETENSKAP Kemi Miljökemi.

  1. 1. Assessment of human exposure to per- and polyfluorinated compounds (PFCs) : exposure through food, drinking water, house dust and indoor air

    Detta är en avhandling från Örebro : Örebro universitet

    Författare :Ingrid Ericson Jogsten; Gunilla Lindström; Bert van Bavel; Stuart Harrad; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; human exposure; per- and polyfluorinated compunds PFCs ; dietary intake; drinking water; indoor environment; TECHNOLOGY; TEKNIKVETENSKAP; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Miljökemi; Environmental Chemistry; Kemi; Chemistry;

    Sammanfattning : Per- and polyfluorinated compounds (PFCs) are detected in humans worldwide but all sources of human exposure have not been fully characterized. The aim of this thesis was to evaluate the contributions from food, water, air and dust as sources for human PFC exposure in the general population. LÄS MER

  2. 2. Generation, stability and migration of montmorillonite colloids in aqueous systems

    Detta är en avhandling från Örebro : Örebro universitet

    Författare :Sandra García García; Mats Jonsson; Tiziana Missana; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Bentonite; montmorillonite; colloid stability; colloid migration; geological disposal; nuclear waste; granitic fractures; ; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; NATURAL SCIENCES Chemistry Environmental chemistry Environmental toxicology; NATURVETENSKAP Kemi Miljökemi Miljötoxikologi; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Surface and colloid chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Yt- och kolloidkemi; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Nuclear chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Kärnkemi;

    Sammanfattning : In Sweden the encapsulated nuclear waste will be surrounded by compacted bentonite in the granitic host rock. In contact with water-bearing fractures the bentonite barrier may release montmorillonite colloids that may be further transported in groundwater. LÄS MER

  3. 3. Metal distribution and mobility under alkaline conditions

    Detta är en avhandling från Örebro : Örebro universitetsbibliotek

    Författare :Mårten Dario; Bert Allard; Yngve Albinsson; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemi; Adsorption; Colloids; Nuclear waste; Cement; Montmorillonite; miljökemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Kemi; Chemistry;

    Sammanfattning : The adsorption of an element, expressed as its distribution between liquid (aquatic) and solid phases in the biogeosphere, largely determines its mobility and transport properties. This is of fundamental importance in the assessment of the performance of e.g. geologic repositories for hazardous elements like radionuclides. LÄS MER

  4. 4. Rapid analysis of actinide isotopes using quadrupole ICP-MS for emergency preparedness and environmental monitoring

    Detta är en avhandling från Örebro : Örebro universitetsbibliotek

    Författare :Christina Greis; Stefan Karlsson; Bert Allard; Anders Düker; Håkan Pettersson; Gi-Hoon Hong; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; quadrupole ICP-MS; actinides; plutonium; preparedness; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; Enviromental Science; Miljövetenskap;

    Sammanfattning : Transuranium elements in the environment are mainly derived from nuclear weapons testing and the nuclear fuel cycle. Of growing concern are illicit nuclear trafficking and the threat of terror acts. LÄS MER

  5. 5. Monitoring persistent organic pollutants (POPs) in sub-Arctic and Arctic marine mammals, 1984 - 2009

    Detta är en avhandling från Örebro : Örebro universitetsbibliotek

    Författare :Anna Rotander; Bert van Bavel; Magnus Engwall; Jacob de Boer; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Arctic; marine mammals; North Atlantic Ocean; POPs; temporal variations; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; Miljökemi; Environmental Chemistry;

    Sammanfattning : The Arctic has become an important indicator region for assessing persistence and bioaccumulation properties of persistent organic pollutants (POPs). This thesis is aimed at evaluating the occurrence of persistent halogenated POPs in seven species of sub-Arctic and Arctic marine mammals over a 25-year period. LÄS MER