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Pregled bibliografske jedinice broj: 372994

Zbornik radova

Autori: Maračić, Manda; Franić, Zdenko; Marović, Gordana
Naslov: KONCENTRACIJA AKTIVNOSTI 90Sr U ŽIVOTINJSKIM KOSTIMA U REPUBLICI HRVATSKOJ
( INVESTIGATIONES OF 90Sr ACTIVITY CONCENTRATIONS IN ANIMAL BONES IN REPUBLIC OF CROATIA )
Izvornik: Zbornik radova VII. simpozija Hrvatskog društva za zaštitu od zračenja s međunarodnim sudjelovanjem / Barišić, Delko ; Grahek, Željko ; Krajcar Bronić, Ines ; Miljanić, Saveta (ur.). - Zagreb : HDZZ-CRPA , 2008. 254-260 (ISBN: 978-953-96133-6-3).
Skup: VII. simpozij Hrvatskog društva za zaštitu od zračenja s međunarodnim sudjelovanjem
Mjesto i datum: Zagreb, Hrvatska, 29-31.05.2008.
Ključne riječi: radioaktivnost; 90Sr; životinjske kosti
( Radioactivity; 90Sr; Animal Bones )
Sažetak:
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.
Vrsta sudjelovanja: Predavanje
Vrsta prezentacije u zborniku: Cjeloviti rad (više od 1500 riječi)
Vrsta recenzije: Domaća recenzija
Projekt / tema: 022-0222882-2335, 022-0222882-2823
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Fizika,Javno zdravstvo i zdravstvena zaštita
Upisao u CROSBI: jsencar@imi.hr (jsencar@imi.hr), 25. Stu. 2008. u 15:22 sati



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