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Natural thorium isotopes levels in marine sediments of Coal-Fired Power Plant
https://doi.org/10.15083/00040688
https://doi.org/10.15083/000406889eaab884-6ac0-4b1a-a739-487863478e3d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
CMS340126.pdf (326.3 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2012-05-25 | |||||
| タイトル | ||||||
| タイトル | Natural thorium isotopes levels in marine sediments of Coal-Fired Power Plant | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | coastal water | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | sedimentation rate | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | radioactive | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | metals | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | pollution | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.15083/00040688 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
Mohamed, Che Abd Rahim
× Mohamed, Che Abd Rahim× Shafie, Azlina |
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| 著者所属 | ||||||
| 著者所属 | Marine Ecosystem Research Centre (EKOMAR), Universiti Kebangsaan Malaysia | |||||
| 著者所属 | ||||||
| 著者所属 | School of Environmental & Natural Resources Sciences, Faculty of Science & Technology, Universiti Kebangsaan Malaysia | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Three sediment cores about 50 cm lengths collected from the coastal of Coal-Fired Power Plant at Kapar, Selangor, Malaysia on 25th October 2003 to investigate fluctuation activity of natural thorium isotopes such as thorium-232, thorium-230 and thorium-228 in various depths of sediments core at the effluent area of Kapar Coal electric power station. Then also affect from the coal-fired power station operation in enhancement activities of natural thorium isotopes to the marine environment. The unsupported activity of thorium-228 used to estimate the sediment mixing with extremely high rate value of 12455cm2 yr(-1) at the hot water discharge station. The activity range of thorium-232, thorium-230 and thorium-228 was from 4.38±0.14 to 11.75±0.51 dpm/g, 2.73±0.11 to 9.54±0.43 dpm/g and 3.34±0.19 to 12.38±0.61 dpm/g, respectively. All three isotopes display non-uniform and greatly fluctuated distribution from surface to the deeper layers as revealed by high sediments mixing. The ratio values of thorium-230/thorium-232 and thorium-228/thorium-232 also exhibited as non-uniform profile where the average ratio of thorium-228/thorium-232 was about 0.76 indicating low contain activity of uranium-238 or uranium-234 in the detrital materials and that uranium was tends to diffuse from sediments during the weathering, erosion and sediments transport. Meanwhile, the ratio of thorium-228/thorium-232 less than unity cause by the leach out process of radium-228 from sediment-water interface. The statistical correlation coefficient value obtained from the Pearson method have a positive correlation between thorium-232, thorium-230 and thorium-228 with Al, Fe and Mn, indicating thorium isotopes were attached with the oxides metals. Then the total carbon value also shows a significant negative correlation with thorium-232 and thorium-228 where these isotopes tend to decrease with increasing total carbon content in the sediments. | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Proceedings of 4th JSPS-VAST Joint Seminar on 'Coastal Marine Science', Hai Phong, Viet Nam, 26-28 October 2009 | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Ocean Pollution | |||||
| 書誌情報 |
Coastal marine science 巻 34, 号 1, p. 172-180, 発行日 2010-08-20 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 13493000 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11957899 | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 452 | |||||
| 出版者 | ||||||
| 出版者 | International Coastal Research Center, Atmosphere and Ocean Research Institute, the University of Tokyo | |||||
| 出版者別名 | ||||||
| 東京大学大気海洋研究所国際沿岸海洋研究センター | ||||||
