Radioactivity of plutonium isotopes, 137Cs and their ratio in sediment, seawater and biota from the east coast of Peninsular Malaysia
| Autor: | Mei-Wo Yii, Zal U'yun Wan Mahmood |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Radionuclide
Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health chemistry.chemical_element Sediment Biota Pollution Analytical Chemistry Plutonium Nuclear Energy and Engineering chemistry Environmental chemistry Radioactive contamination Environmental science Radiology Nuclear Medicine and imaging Seawater Water quality Water pollution Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 289:819-833 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-011-1149-0 |
| Popis: | This study with sampling expeditions of marine sediment, seawater and biota were performed at 30 stations within Malaysian Exclusive Economic Zone (EEZ). A total of >400 samples were collected to determine the activity concentration of anthropogenic radionuclides (239+240Pu, 137Cs) and their activity ratio (239+240Pu/137Cs) in sediments, seawater and biota. The purpose of this study was to determine the concentration levels for these radionuclides and to evaluate any occurrence of radioactive contamination. Sediment cores were obtained using multicorer device, while water samples via co-precipitation techniques and biota was purchased from local fishermen. The activity concentrations of 239+240Pu in sediment, seawater and biota were ranged 0.21–0.45 Bq/kg dry wt., 2.33–7.95 mBq/m3 and |
| Databáze: | OpenAIRE |
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