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  • Title: Uranium content and dose assessment for phosphate fertiliser and soil samples: comparison of uranium concentration between virgin soil and fertilised soil.
    Author: Boukhenfouf W, Boucenna A.
    Journal: Radiat Prot Dosimetry; 2012 Jan; 148(2):263-7. PubMed ID: 21398318.
    Abstract:
    Specific activity of (235)U and (238)U in soil and fertiliser samples from Guellal region in Setif (Algeria) was determined by gamma-ray spectrometry. The selected phosphate fertilisers samples were collected from two types of fertilisers NPK (N, nitrogen; P, phosphorus; K, potassium) and NPKs (sulphate-based NPK). These last ones are used to fertilise the studied area as well as a radioactivity comparison between the soils before and after fertilisation. NPK and NPKs fertilisers have presented higher concentrations of the radionuclide (238)U, up to 1125 and 1545 Bq kg(-1), respectively. For soils before and after fertilisation, the concentrations of (238)U were, respectively, 252.8 and 316.2 Bq kg(-1). The average value and range of measured concentration of (235)U for soils before fertilisation was 12.16 ± 1.4 Bq kg(-1) and for the fertilised soils was 15.16 ± 1.8 Bq kg(-1), whereas the corresponding values for NPK and NPKs fertilisers were, respectively, 49.38 ± 5.7 and 50.61 ± 5.2 Bq kg(-1).
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