Sökning: "137Cs"

Visar resultat 16 - 20 av 27 uppsatser innehållade ordet 137Cs.

  1. 16. Activity concentration and transfer factors ofnatural and artificial radionuclides in the Swedishcounties of Uppsala and Jämtland

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

    Författare :Nicola Pallavicini; [2011]
    Nyckelord :natural radionuclides; 137Cs; Transfer Factors;

    Sammanfattning : The study was performed in two areas of Sweden respectively with high natural radioactivitybackground (County of Jämtland), and high 137Cs deposition area deriving from Chernobylfallout (County of Uppsala.Aims of the study were the calculation of activity concentration and transfer factors for all 6radionuclides in the two areas and analysis of influence of soil characteristics on radionuclidesbehavior. LÄS MER

  3. 17. Resultat av tjugofem års mätningar av Cs-137-halter i älg i Uppsala län

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

    Författare :Robert Weimer; [2011]
    Nyckelord :cesium; älg; radioekologi; strålning; Tjernobylolyckan; älgkött; Heby;

    Sammanfattning : At the end of April 1986 reactor number 4 of the nuclear power plant at Chernobyl explod-ed and large amounts of radioactive particles were then released into the atmosphere due to both the explosion as well as the consecutive fire of the graphite core. A cloud of radioac-tivity was spread over the northern hemisphere, including Sweden, due to the prevailing wind directions. LÄS MER

  4. 18. 137Cesium i myrsamhällen i Gävleborgs län 24 årefter Tjernobylolyckan

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

    Författare :Linnea Brandström ; [2010]
    Nyckelord :radioekologi; myror; myrstackar; stråldos; cesium-137; Gävle; Tjernobylolyckan;

    Sammanfattning : 24 years have passed since the Chernobyl accident when radionuclides were spread over largeareas of Europe, including the Scandinavian countries. Today, measurable activities of 137Csare still observed in many Swedish ecosystems. LÄS MER

  5. 19. 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

  7. 20. 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