ログイン
言語:

WEKO3

  • トップ
  • ランキング
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

  1. 139 大気海洋研究所
  2. 80 国際沿岸海洋研究センター
  3. Coastal Marine Science
  4. 34
  5. 1
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. Coastal Marine Science
  4. 34
  5. 1

Natural thorium isotopes levels in marine sediments of Coal-Fired Power Plant

https://doi.org/10.15083/00040688
https://doi.org/10.15083/00040688
9eaab884-6ac0-4b1a-a739-487863478e3d
名前 / ファイル ライセンス アクション
CMS340126.pdf CMS340126.pdf (326.3 kB)
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

WEKO 93600

Mohamed, Che Abd Rahim

Search repository
Shafie, Azlina

× Shafie, Azlina

WEKO 93601

Shafie, Azlina

Search repository
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
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
戻る
0
views
See details
Views

Versions

Ver.1 2021-03-01 13:24:07.610550
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR 2.0
  • OAI-PMH JPCOAR 1.0
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by WEKO3


Powered by WEKO3