The impact of increased natural background of soil on the animal production of ruminants in the region of Livno [Bosnia and Herzegovina] | Uticaj povisenog prirodnog bakgrounda tla na animalnu proizvodnju prezivara na podrucju Livna [Bosna i Hercegovina]
2009
Gradiscevic, N. | Saracevic, L. | Samek, D. | Mihalj, A., Univerzitet u Sarajevu, Sarajevo (Bosnia and Herzegovina). Veterinarski fakultet
In the paper, the impact of increased levels of uranium and radium in soil on the levels of activity and radiation-hygienic validity of animal products of ruminants was investigated. Region around the town Livno is placed on the coal layer with increased levels of uranium and radium compared with other coals in Bosnia and Herzegovina. As a result of mixing between coal matrix and soil, increased value of average absorbed dose rate at 1 m above the ground (144 nGy/h) was measured. The highest average value of 238U and 226Ra in the samples of animal products of ruminants was measured in samples of sheep cheese (0.070 Bq/kg for 238U and 0.160 Bq/kg for 226Ra). The levels of these two radionuclides in the rest of animal products of ruminants were approximately similar with ranges 0.016-0.046 Bq/kg for 238U and 0.028-0.080 Bq/kg for 226Ra. Levels of 40K were in range of average values for animal products (31.2-86.4 Bg/kg). Calculated annual effective dose by ingestion of the animal products of ruminants were approximately 0.064 mSv with the highest dose contribution of 40K (96.4%). On the base of obtained results, animal products of ruminants produced in observed region, can be considered as valid for human consumption from radiation-hygienic aspect.
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