Assessment of the average effective dose from the analysis of ²²⁶Ra, ²³²Th and ⁴⁰K in soil samples from Punjab, India (Special Issue : Applications of Radioactive Geochemistry in Earth Sciences) Assessment of the average effective dose from the analysis of ^<226>Ra, ^<232>Th and ^<40>K in soil samples from Punjab, India

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The activity concentrations of the natural radionuclides, namely <sup>238</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K, are measured for soil samples collected from some locations of the Malwa region of Punjab. An HPGe detector, based on high-resolution gamma spectrometry system is used for the measurement of activity concentrations. The activity concentrations of <sup>226</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K in the soil from the studied areas varies from 23.3 Bq kg<sup>–1</sup> (Jagraon) to 43.6 Bq kg<sup>–1</sup> (Ludhiana), 104 Bq kg<sup>–1</sup> (Raikot) to 148 Bq kg<sup>–1</sup> (Kauli) and 290 Bq kg<sup>–1</sup> (Rajpura) to 394 Bq kg<sup>–1</sup> (Sarhind) having an overall mean value of 32 Bq kg<sup>–1</sup>, 126 Bq kg<sup>–1</sup> and 348 Bq kg<sup>–1</sup> respectively. The radium equivalent activity (Ra<sub>eq</sub>) in these soil samples ranges from 200 Bq kg<sup>–1</sup> (Jagraon) to 264 Bq kg<sup>–1</sup> (Kauli) having a mean value of 237 Bq kg<sup>–1</sup>. Corresponding indoor and outdoor annual effective doses range from 0.45 to 0.59 mSv and 0.11 to 0.15 mSv and average 0.53 and 0.13 mSv. The external hazard index (H<sub>ex</sub>) for soil samples of the study area are lower than unity; therefore, according to the Radiation Protection 112 (European Commission, 1999) report, soil from these regions is safe and can be used as a construction material without posing any significant radiological threat to population.

収録刊行物

  • Geochemical journal : journal of the Geochemical Society of Japan

    Geochemical journal : journal of the Geochemical Society of Japan 45(6), 497-503, 2011-12-01

    一般社団法人日本地球化学会

参考文献:  38件中 1-38件 を表示

被引用文献:  3件中 1-3件 を表示

各種コード

  • NII論文ID(NAID)
    10030363422
  • NII書誌ID(NCID)
    AA00654975
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    00167002
  • NDL 記事登録ID
    023392233
  • NDL 請求記号
    Z53-R488
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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