Properties of 137Cs in marine sediments off Yangnam, Korea
| Autor: | Xiu-Jing Lin, Wan Kim, Chang-Jong Kim, Do-Sung Kim, Hee-Dong Kang, Si-Hong Doh, Y. Kim, H.L. Lee, S.G. Yun, G. Park |
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| Rok vydání: | 2003 |
| Předmět: |
Geologic Sediments
Water Pollutants Radioactive Nitrogen Health Toxicology and Mutagenesis Oceans and Seas Mineralogy Environmental Chemistry Organic matter Seawater Particle Size Water pollution Waste Management and Disposal Total organic carbon chemistry.chemical_classification Korea Chemistry Sediment General Medicine Pollution Carbon Partition coefficient Cesium Radioisotopes Particle-size distribution Particle size Adsorption Sulfur Hydrogen |
| Zdroj: | Journal of environmental radioactivity. 77(3) |
| ISSN: | 0265-931X |
| Popis: | Concentrations of 137 Cs in sediment and seawater samples in the East Sea (Japan Sea) adjacent to Yangnam, Korea were measured and data on the physical and chemical properties of the sediments were collected. The concentrations of 137 Cs in the sediment samples were in the range of less than the minimum detectable activity (MDA)—7.19 Bq/kg-dry, and the values were linearly correlated with particle size, total organic carbon (TOC), H, N or S content of the sediment. The 137 Cs concentrations in the sediment samples were well fitted to a multiple regression equation with TOC contents and particle size distributions. The distribution coefficients, which indicate the degree of adsorption, of 137 Cs to the sediments were strongly dependent on particle size and TOC content. |
| Databáze: | OpenAIRE |
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