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LIU Guang-shan, HUANG Yi-pu, CHEN Min, QIU Yu-sheng, CAI Yi-hua, GAO Zhong-yong. Specific activity and distribution of natural radionuclides and 137Cs in surface sediments of the northeastern South China Sea[J]. Haiyang Xuebao, 2001, 23(6): 76-84.
Citation: LIU Guang-shan, HUANG Yi-pu, CHEN Min, QIU Yu-sheng, CAI Yi-hua, GAO Zhong-yong. Specific activity and distribution of natural radionuclides and 137Cs in surface sediments of the northeastern South China Sea[J]. Haiyang Xuebao, 2001, 23(6): 76-84.

Specific activity and distribution of natural radionuclides and 137Cs in surface sediments of the northeastern South China Sea

  • Received Date: 2000-08-13
  • Rev Recd Date: 2000-11-10
  • Natural radio nuclides 40K,210,226,228Ra,228Th,238U and 137Cs in surface sediments from the northeastern South China Sea are measured by HPGe γ spectrometer.The mean specific activities of above 7 nuclides are respectively 538,116,27.7,44.9,4210,35.4 and 11.6 Bq/kg.The results show that 210Pb in sediments increases and 226Ra is no variance and others nuclides decrease with distance from coast.By comparison with other China coastal sea areas,the specific activities of 40K and 137Cs are lower and other nuclides are mid-level.
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