Sökning: "radiocaesium"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet radiocaesium.

  1. 1. Transfer of radiocaesium (137Cs) to lynx (Lynx lynx) and brown bear (Ursus arctos) in Chernobyl affected areas in Sweden

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

    Författare :Yury Chaiko; [2012]
    Nyckelord :radiocaesium; lynx; brown bear;

    Sammanfattning : In this study, 137Cs activity concentration was measured in 266 lynxes hunted in early spring during the years 2006-2011 in central and northern Sweden and in 161 bears hunted in the end of August until October during the years 2010 and 2011. Highest activity concentrations of 137Cs were observed in lynx and bear coming from counties with highest radiocaesium fallout after the Chernobyl accident. LÄS MER

  3. 2. Uppfångning och kvarhållning av 134Cs och 85Sr i olika växtutvecklingsstadier

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för geovetenskaper

    Författare :Anna-Lisa Mårtensson; [2012]
    Nyckelord :radiocaesium; countermeasures; growth stages; interception; LAI; ley; oilseed rape; radioactivity; retention; radiostrontium; wheat; cesium; kvarhållning; LAI; motåtgärder; strontium; radioaktivitet; raps; uppfångning; vall; vete; växtutvecklingsstadier;

    Sammanfattning : Emissions of radionuclides to the atmosphere can lead to wet deposition on plants in theevent of rainfall. An increased level of radioactivity in the plants may occur due tointerception and retention of the radionuclides. If the content of the plants is above thethreshold limit value, entire yields may have to be destroyed. LÄS MER

  4. 3. Downward migration and transfer to plants of radiocaesium in Scottish soil profiles : a comparison with earlier studies

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

    Författare :Kristin Thored; [2010]
    Nyckelord :Radiocaesium; migration rate; migration depth; transfer factors; deposition; Scotland;

    Sammanfattning : Following the accident at the nuclear power plant in Chernobyl in 1986, great volumes of137Cs were distributed over large parts of the former Soviet Union and Europe. Over Scotland,radiocaesium was deposited as wet deposition. LÄS MER

  5. 4. Uptake of 137Cs by fungi and plants due to potassium fertilization in Heby municipality in response to the Chernobyl nuclear accident

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

    Författare :Therèse Nilsson; [2009]
    Nyckelord :Radiocaesium; 137Cs; potassium; potassium fertilization; forest plants; fungi; ; countermeasure; Chernobyl nuclear accident;

    Sammanfattning : The fallout from the Chernobyl nuclear accident resulted in large deposits of caesium, iodine and strontium as well as noble gases in various parts of Sweden. 137Cs has a radioactive halflife of about 30 years and is therefore one of few radio-fission products remaining in measurable quantities in the Swedish soil. LÄS MER

  7. 5. 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