| 摘要: |
| 本文对南海近海海水中的放射性总α、总β的含量和分布进行了研究。结果表明:南海近海海水中的总α、总β含量,略高于东海,稍低于渤海。南海近海海域的主要放射性物质是铀、钍天然放射系和40K。 |
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| A STUDY OF THE RADIOACTIVE TOTAL ALPHA AND TOTAL BETA IN COASTAL SEAWATER IN SOUTH CHINA SEA |
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| Abstract: |
| The contents and the distribution of the radioactive total alpha and total beta in coastal water of south china sea and their correlations with the run-off of rivers, the dynamical condition in the sea and salinity are discussed. The variation of radioactive total alpha and total beta concentration in seawater are mainly affected by the runoff of the coastal rivers. The energy spectrum analyses of the surface layer sediments in the Pearl river mouths and investigated sea area show that radioactive isotopes in the surface layer sediments are basically the notural radioactive isotopes of U, Th family and 40K. |
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