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Bibliographic record number: 372994

Journal

Authors: Maračić, Manda; Franić, Zdenko; Marović, Gordana
Title: KONCENTRACIJA AKTIVNOSTI 90Sr U ŽIVOTINJSKIM KOSTIMA U REPUBLICI HRVATSKOJ
Source: Zbornik radova VII. simpozija Hrvatskog društva za zaštitu od zračenja s međunarodnim sudjelovanjem / Barišić, Delko ; Grahek, Željko ; Krajcar Bronić, Ines ; Miljanić, Saveta (ed). - Zagreb : HDZZ-CRPA , 2008. 254-260 (ISBN: 978-953-96133-6-3).
Meeting: VII. simpozij Hrvatskog društva za zaštitu od zračenja s međunarodnim sudjelovanjem
Location and date: Zagreb, Hrvatska, 29-31.05.2008.
Keywords: radioaktivnost; 90Sr; životinjske kosti
Abstract:
The paper presents investigations of 90Sr activity concentrations in long bones of some domestic animals (cows, pigs, lambs) collected over the last ten years in the Republic of Croatia. The investigations are a part of an extended and still ongoing monitoring programme of radioactive contamination of human environment of Croatia. Bone is critical organ for the accumulation of many radionuclides, including 90Sr, a highly toxic radionuclide, similar to calcium in its chemical behaviour and metabolic processes. It has been found that the 90Sr activity concentrations in bones differ between respective animal species, the highest activity concentrations being found in lamb bones in year 2005 (472.61 mBq*gCa-1 or 2.14 Bqkg-1). In cow bones highest value being found was in 1998, being 611.42 mBq*gCa-1 or 69.09 Bqkg-1 90Sr. The transient increases and decreases in 90Sr activity concentrations in bones can be partially explained by a variety of environmental physical and biochemical factors that naturally fluctuate. As the levels of stable strontium in bone tissue is strongly correlated to calcium content of bone, 90Sr can be used as efficient radiotracer of stable strontium, which is itself important since it positively affects bone metabolism promoting bone formation and decreasing bone resorption, leading to normalized bone density.
Type of meeting: Predavanje
Type of presentation in a journal: Other
Type of peer-review: Domestic peer-review
Project / theme: 022-0222882-2335, 022-0222882-2823
Original language: ENG
Category: Znanstveni
Research fields:
Physics,Public health and health care system
Contrib. to CROSBI by: jsencar@imi.hr (jsencar@imi.hr), 25. Stu. 2008. u 15:22 sati



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