Sökning: "radiocesium"

Hittade 5 uppsatser innehållade ordet radiocesium.

  1. 1. The influence of soil properties on the transfer of 137Cs from soil to plant : results from a field study 21 years after the Chernobyl accident

    L3-uppsats, SLU/Dept. of Soil and Environment

    Författare :Maja Larsson; [2008]
    Nyckelord :caesium; 137Cs; radioactive fallout; Chernobyl; field study; plant uptake; soil; soil-plant transfer;

    Sammanfattning : 137Cs is one of a few radio contaminants from the Chernobyl accident in 1986 that is left in measurable quantities in Sweden. The hazardous radionuclide has a physical half-life of 30 years and enters easily into biological systems. Several studies have been performed on 137Cs and its behaviour in different ecosystems since the fallout. LÄS MER

  3. 2. Migration of radiocaesium in six Swedish pasture soils after the Chernobyl accident : a comparison with earlier studies 1987-2005

    L3-uppsats, SLU/Dept. of Soil and Environment

    Författare :Henning Persson; [2008]
    Nyckelord :radiocaesium; 137Cs; migration; migration depth; soil-plant transfer; Chernobyl fallout; field study; pasture soils;

    Sammanfattning : This study comprises six pasture soils in central and northern Sweden which were strongly affected by the Chernobyl fallout in 1986. The aim of the study was to investigate the vertical migration and plant uptake of radiocaesium as related to soil texture and other soil properties. LÄS MER

  4. 3. Överföring av radiocesium till potatis vid olika nedfallstidpunkter

    L3-uppsats, SLU/Dept. of Soil Sciences

    Författare :Marielle Stenmark; [2008]
    Nyckelord :potatisknöl; potatisblast; 134Cs; artificiell deposition; radioaktivitet;

    Sammanfattning : Agricultural land could be polluted by radioactive substances after a fallout. We would then need information about the level of contamination to decide whether the crops could be utilized as food under these circumstances. LÄS MER

  5. 4. Förändring av radiocesiumtillståndet i jordbruksgrödor i Gävleborgs, Västmanlands och Uppsala län efter Tjernobylolyckan samt en fallstudie med stallbalansberäkningar på en mjölkgård

    L3-uppsats, SLU/Dept. of Soil Sciences

    Författare :Johanna Olsson; [2006]
    Nyckelord :137Cs; 40K; cesium; Tjernobylolyckan; kontaminerad jord; radioaktivt nedfall;

    Sammanfattning : Several radioactive nuclides were deposited in Sweden after the Chernobyl accident in 1986. The greatest attention was given to 137Cs because of its relative long physical half life of about 30 years. 137Cs will be present in nature for more than 100 years before it has vanished completely. LÄS MER

  7. 5. Migration och vegetationsupptag av radiocesium i åkermark : en långtidsserie av mätdata samt en långsiktig simuleringsmodell

    L3-uppsats, SLU/Dept. of Soil Sciences

    Författare :Anna Strömqvist; [2005]
    Nyckelord :migration; långtidsserie; simuleringsmodell; radiocesium;

    Sammanfattning : The accident in 1986 at the nuclear power station in Chernobyl, Ukraine, dispersed radioactive cesium over large areas of Europe. The half life of 137Cs is 30 years and this radionuclide also behaves like potassium, which means that it can easily be taken up by the vegetation or be adsorbed in to the structure of clays, principally illitic clays. LÄS MER