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RADIOACTIVITY LEVELS IN SOME SEDIMENT SAMPLES FROM RED SEA AND BALTIC SEA

机译:红海和波罗的海某些沉积物样品中的放射性水平

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摘要

Levels of ~(226,228)Ra, ~(232)Th, ~(210)Pb, ~(210)Po and ~(40)K in sediments from four monitoring areas, El Hamraween and Ras El Behar (Red Sea, Egypt) and LL3A and JML (Baltic Sea, Finland), have been investigated using alpha and gamma spectrometry. The average activity concentrations were 238 + 4 Bq kg~(-1) (~(226)Ra), 215 + 11 Bq kg~(-1) (~(210)Pb) and 311 + 18 Bq kg~(-1) (~(210)Po) for El Hamraween area. In Ras El Behar area, the corresponding values were 16 + 0.4, 18 + 1 and 20 + 5 Bq kg~(-1), respectively. The activity concentrations for ~(226)Ra, ~(210)Pb and ~(2l0)Po (uranium series) in El Hamraween bottom sediment are much high compared with those in Ras El Behar area, which indicates the enhanced levels due to the activities of phosphate mining and shipment operations in El Hamraween area. Excluding the influence of phosphate mining activities, it can be concluded that the levels of radioactivity in Baltic Sea sediments are higher than those in Red Sea sediments.
机译:来自四个监测区El Hamraween和Ras El Behar(埃及红海)的沉积物中〜(226,228)Ra,〜(232)Th,〜(210)Pb,〜(210)Po和〜(40)K的水平LL3A和JML(芬兰波罗的海)已使用α和γ谱仪进行了研究。平均活性浓度为238 + 4 Bq kg〜(-1)(〜(226)Ra),215 + 11 Bq kg〜(-1)(〜(210)Pb)和311 + 18 Bq kg〜(-1 )(〜(210)Po),用于El Hamraween地区。在Ras El Behar地区,相应的值分别为16 + 0.4、18 +1和20 + 5 Bq kg〜(-1)。 El Hamraween底部沉积物中〜(226)Ra,〜(210)Pb和〜(2l0)Po(铀系列)的活度浓度比Ras El Behar地区高得多,这表明由于El Hamraween地区的磷酸盐开采和运输业务活动。排除磷酸盐开采活动的影响,可以得出结论,波罗的海沉积物中的放射性水平高于红海沉积物中的放射性水平。

著录项

  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.101-106|共6页
  • 作者

    K. Salahel Din; P. Vesterbacka;

  • 作者单位

    Physics Department, Qena faculty of Science, South Valley University, Qena, Egypt;

    STUK - Radiation and Nuclear Safety Authority, Laippatie 4, FI-00880 Helsinki, Finland;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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