Uranium Concentration in Typical Pakistani Diet
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- Akhter Perveen AKHTER PERVEEN
- Health Physics Division, Pakistan Institute of Nuclear Science & Technology
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- Khaleeq-Ur-Rahman Muhammad KHALEEQ-UR-RAHMAN MUHAMMAD
- Department of Physics, University of Engineering and Technology
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- Shiraishi Kunio [他] SHIRAISHI KUNIO
- Division of Human Radiation Environment, National Institute of Radiological Sciences
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- KAWAMURA HISAO
- Division of Human Radiation Environment, National Institutoe of Radiological Sciences
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- AHMAD NASIR
- Pakistan Institute of Engineering and Applied Sciences
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Author(s)
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- Akhter Perveen AKHTER PERVEEN
- Health Physics Division, Pakistan Institute of Nuclear Science & Technology
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- Khaleeq-Ur-Rahman Muhammad KHALEEQ-UR-RAHMAN MUHAMMAD
- Department of Physics, University of Engineering and Technology
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- Shiraishi Kunio [他] SHIRAISHI KUNIO
- Division of Human Radiation Environment, National Institute of Radiological Sciences
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- KAWAMURA HISAO
- Division of Human Radiation Environment, National Institutoe of Radiological Sciences
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- AHMAD NASIR
- Pakistan Institute of Engineering and Applied Sciences
Abstract
To strengthen the radiation protection infrastructure in Pakistan, the uranium concentration in daily diet was measured and its associated radiation risks were estimated for the adult population. Food samples were collected from major cities and districts of the country by the market basket method, from which daily diets were prepared. These diet samples were analyzed using inductively coupled plasma mass spectrometry (ICP-MS) at the National Institute of Radiological Sciences, Japan, the regional Central Reference Laboratory of the Reference Asian Man Project. The measured values of the uranium content were found to vary from 2.3 ng (g dry)<sup>-1</sup> to 11 ng (g dry)<sup>-1</sup>. The geometric mean concentration and geometric standard deviation were 4.5 ×/÷1.7 ng (g dry)<sup>-1</sup>. This leads to a daily dietary intake of 2.6 ×/÷ 1.7 μg d<sup>-1</sup> or 33 ×/÷ 1.7 mBq d<sup>-1</sup>, which is approximately 40% higher than the ICRP value. The measured value, <i>i.e.</i> 33 mBq d<sup>-1</sup>, contributes 12 Bq y<sup>-1</sup> to annual intake of 238U activity and 0.54 μSv to the committed effective dose to the adult population. This is a very small fraction of the ICRP annual effective dose limit of 1 mSv for the general public. Therefore, it would pose no significant health hazard.<br>
Journal
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- Journal of Radiation Research
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Journal of Radiation Research 44(3), 289-293, 2003-09-15
Journal of Radiation Research Editorial Committee
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