کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1739281 1016842 2008 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Radionuclide contamination of sediment deposits in the Ob and Yenisey estuaries and areas of the Kara Sea
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Radionuclide contamination of sediment deposits in the Ob and Yenisey estuaries and areas of the Kara Sea
چکیده انگلیسی
The Ob and Yenisey rivers are major contributors to total riverine discharge to the Arctic Ocean. Several large nuclear facilities discharge into these rivers, which could affect actual and potential discharges of radionuclides to the Arctic region. This article presents new radionuclide concentration and grain-size data resulting from analyses of several sediment samples collected during research cruises in the Ob and Yenisey estuaries and adjacent areas during 2000 and 2001. Results indicate that discharges from the main nuclear facilities do not constitute a major contribution to the level of radioactive contamination in the marine areas studied, though Co-60 was detected at low concentrations in some sediment horizons. However, the aggregate contamination from different sources is not radioecologically significant in sediments within the study area, maximum Cs-137 levels being approximately 80 Bq kg−1 dry weight.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 99, Issue 4, April 2008, Pages 665-679
نویسندگان
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