کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8082876 | 1521595 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polonium-210 and Caesium-137 in lynx (Lynx lynx), wolverine (Gulo gulo) and wolves (Canis lupus)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
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چکیده انگلیسی
Wolves, lynx and wolverines are on the top of the food-chain in northern Scandinavia and Finland. 210Po and 137Cs have been analysed in samples of liver, kidney and muscle from 28 wolves from Sweden. In addition blood samples were taken from 27 wolves. In 9 of the wolves, samples of muscle, liver and blood were analysed for 210Po. Samples of liver and muscle were collected from 16 lynx and 16 wolverines from Norway. The liver samples were analysed for 210Po and 137Cs. Only 137Cs analyses were carried out for the muscle samples. The wolves were collected during the winter 2010 and 2011, while the samples for lynx and wolverines were all from 2011. The activity concentrations of 210Po in wolves were higher for liver (range 20-523 Bq kgâ1 d.w.) and kidney (range 24-942 Bq kgâ1 d.w.) than muscle (range 1-43 Bq kgâ1 d.w.) and blood (range 2-54 Bq kgâ1 d.w.). Activity ratios, 210Po/210Pb, in wolf samples of muscle, liver and blood were in the ranges 2-77, 9-56 and 2-54. Using a wet weight ratio of 3.8 the maximal absorbed dose from 210Po to wolf liver was estimated to 3500 μGy per year. Compared to wolf, the ranges of 210Po in liver samples were lower in lynx (range 22-211 Bq kgâ1 d.w.) and wolverine (range16-160 Bq kgâ1 d.w.). Concentration of 137Cs in wolf samples of muscle, liver, kidney and blood were in the ranges 70-8410 Bq kgâ1 d.w., 36-4050 Bq kgâ1 d.w., 31-3453 Bq kgâ1 d.w. and 4-959 Bq kgâ1 d.w., respectively. 137Cs in lynx muscle and liver samples were in the ranges 44-13393 Bq kgâ1 d.w. and 125-10260 Bq kgâ1 d.w. The corresponding values for 137Cs in wolverine were 22-3405 Bq kgâ1 d.w. for liver and 53-4780 Bq kgâ1 d.w. for muscle. The maximal absorbed dose from 137Cs to lynx was estimated to 3000 μGy per year.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 138, December 2014, Pages 402-409
Journal: Journal of Environmental Radioactivity - Volume 138, December 2014, Pages 402-409
نویسندگان
Runhild Gjelsvik, Elis Holm, John Atle KÃ¥lÃ¥s, Bertil Persson, Jessica Ã
sbrink,