Measurement of natural radioactivity from soil samples of Sind, Pakistan.
Natural radioactivity has been measured from the soil samples collected from the Sind province of Pakistan. The measured activities of ²²⁶Ra, ²³²Th and ⁴⁰K were found in the range of 18-47, 24-69 and 254-769 Bq kg⁻¹, respectively. The calculated values of the absorbed dose rate in air and the annual effective dose were in the range of 33-87 nGy h⁻¹ and 0.16-0.43 mSv, respectively. The measured results of activity were found compatible with the worldwide findings.
Physics Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan. shafiq_mujahid@hotmail.com
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Mujahid
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Hussain
D000396:Air Pollutants, Radioactive; D000465:Algorithms; D004781:Environmental Exposure; D005843:Geography; D010154:Pakistan; D011197:Potassium Radioisotopes / Q000032:analysis*; D011834:Radiation Monitoring / Q000379:methods; D011851:Radioactivity; D011883:Radium / Q000032:analysis*; D012990:Soil Pollutants, Radioactive / Q000032:analysis*; D013051:Spectrometry, Gamma / Q000379:methods*; D013910:Thorium / Q000032:analysis*
D000396:Air Pollutants, Radioactive; D011197:Potassium Radioisotopes; D012990:Soil Pollutants, Radioactive; D013910:Thorium; D011883:Radium