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Journal of Radioanalytical and Nuclear Chemistry

, Volume 287, Issue 2, pp 647–655 | Cite as

Measurement of naturally occurring/fallout radioactive elements and assessment of annual effective dose in soil samples collected from four districts of the Punjab Province, Pakistan

  • S. U. Rahman
  • Matiullah
  • F. Malik
  • M. Rafique
  • J. Anwar
  • M. Ziafat
  • A. Jabbar
Article

Abstract

Soil samples were collected from different localities of districts Jhelum, Chakwal, Rawalpindi and Attock, Punjab Province, Pakistan with an aim to measure naturally occurring radionuclides, namely 226Ra, 232Th, 40K and fallout 137Cs radionuclide using a P-type coaxial high purity germanium (HPGe) γ-ray spectrometer. Measured specific activities of 226Ra, 232Th and 40K in these soil samples ranged from 26.02 ± 7.11 to 93.54 ± 8.13 Bq kg−1, 29.34 ± 2.58 to 114.41 ± 2.80 Bq kg−1 and 348.15 ± 3.20 to 752.98 ± 4.20 Bq kg−1, respectively. Activity due to 137Cs was observed in some locations which ranged from 0.4 ± 0.2 to 7.8 ± 0.3 Bq kg−1. From the measured activity concentrations, radium equivalent activity concentrations were determined followed by calculations of mean absorbed dose rate and mean annual effective dose for the inhabitants of the studied area. The mean radium equivalent activity, internal and external hazard indices values came out to be 179.26 ± 11.93 Bq kg−1, 0.64 ± 0.05 and 0.48 ± 0.03, respectively. Indoors and outdoor average annual effective dose values were found to be 0.42 ± 0.03 and 0.10 ± 0.01 mSv, respectively. Present data have been compared with the published data for other parts of the world and found to be safe for public and environment.

Keywords

HPGe γ-ray spectrometry Health risks Radium equivalent activity Annual effective dose Soil sampling 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  • S. U. Rahman
    • 1
    • 5
  • Matiullah
    • 2
  • F. Malik
    • 2
  • M. Rafique
    • 3
  • J. Anwar
    • 1
  • M. Ziafat
    • 4
  • A. Jabbar
    • 1
  1. 1.Department of PhysicsCIITIslamabadPakistan
  2. 2.Physics DivisionPINSTECHIslamabadPakistan
  3. 3.Department of PhysicsUniversity of Azad Jammu & KashmirMuzaffarabadPakistan
  4. 4.KRLKahuta, RawalpindiPakistan
  5. 5.Department of Medical PhysicsNuclear Medicine, Oncology and Radiotherapy Institute (NORI)IslamabadPakistan

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