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Estimation of sedimentation rates using 210Pb and 210Po at the coastal water of Sabah, Malaysia

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Abstract

Sediment cores were obtained from Teluk Brunei, Sipitang, Teluk Kimanis, Kota Kinabalu and Kuala Penyu at the coastal water of Sabah and analyzed for 210Pb and 210Po to estimate the sedimentation rates. The calculated sedimentation rates of 210Pb and 210Po varied from 0.003 to 0.049 cm/y and 0.74 to 8.77 cm/y, respectively. The highest sedimentation rates were determined for 210Pb and 210Po at stations located at Sipitang (mean: 0.027 cm/y) and Teluk Kimanis (mean: 5.53 cm/y), respectively. The sedimentation rate estimated for 210Pb is not fully reliable because the activity of 226Ra was higher than that of 210Pb and bioturbation was active at the sampling stations.

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Authors and Affiliations

  1. Pusat Pengajian Sains Sekitaran and Sumber Alam, Faculty Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia

    Tee Lee Theng

  2. Malaysian Institute for Nuclear Technology Research (MINT), 43650, Bangi, Selangor, Malaysia

    Zaharuddin Ahmad & Che Abd. Rahim Mohamed

Authors
  1. Tee Lee Theng
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  2. Zaharuddin Ahmad
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  3. Che Abd. Rahim Mohamed
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Theng, T.L., Ahmad, Z. & Mohamed, C.A.R. Estimation of sedimentation rates using 210Pb and 210Po at the coastal water of Sabah, Malaysia. Journal of Radioanalytical and Nuclear Chemistry 256, 115–120 (2003). https://doi.org/10.1023/A:1023312412149

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  • DOI: https://doi.org/10.1023/A:1023312412149

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