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    STUDIA AMBIENTUM - Issue no. 1 / 2018  
         
  Article:   DETERMINATION OF THE MONTHLY VARIATION OF RADON ACTIVITY CONCENTRATION IN SOIL.

Authors:  ALEXANDRU LUPULESCU, TIBERIUS DICU, BOTOND PAPP, ALEXANDRA CUCOȘ.
 
       
         
  Abstract:  
DOI: 10.24193/subbambientum.2018.1.05

Published Online: 2018-06-30
Published Print: 2018-06-30

pp. 49-59

VIEW PDF: Determination of the Monthly Variation of Radon Activity Concentration in Soil

The aim of this study was to assess the monthly variation of radon concentration in soil. Besides the radon concentration in soil, the measured parameters were soil permeability, air temperature, pressure, humidity and wind speed. The measurements were conducted for seven months, from December to June. For the soil permeability measurements RadonJok device was used and for determination of radon activity concentration in the soil it was used the Luk-3C device, equipped with scintillation cells. The highest radon concentration was measured in June (48 kBq m-3). Due to precipitations, on the soil surface a water film was created and as a result the radon could not diffuse into the atmosphere. Because of high permeability, a lower radon concentration was measured on April, which was 17 kBq m-3. The permeability favored radon diffusion which decreased its quantity in soil. The highest radon potential was determined to be in June. The lowest was determined to be in April, when the soil permeability was at its highest value. The radon index was medium for January to May and high for June.

Key words: radon in soil, monthly variation, radon potential, radon index.
 
         
     
         
         
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