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Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability
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Uranium concentration in typical Pakistani diet.

Perveen Akhter1, Muhammad Khaleeq-Ur-Rahman, Kunio Shiraishi

  • 1Health Physics Division, Pakistan Institute of Nuclear Science & Technology, Islamabad, Iran.

Journal of Radiation Research
|December 3, 2003
PubMed
Summary
This summary is machine-generated.

Uranium levels in Pakistan

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Area of Science:

  • Environmental Science
  • Radiological Protection
  • Public Health

Background:

  • Radiation protection infrastructure requires understanding dietary contaminant levels.
  • Uranium is a naturally occurring radioactive element present in the environment.
  • Assessing dietary uranium intake is crucial for public health risk evaluation.

Purpose of the Study:

  • To measure uranium concentration in the daily diet of the adult population in Pakistan.
  • To estimate the associated radiation risks from dietary uranium intake.
  • To inform radiation protection strategies in the region.

Main Methods:

  • Food samples collected nationwide using the market basket method.
  • Daily diets prepared from collected food samples.
  • Uranium analysis performed using inductively coupled plasma mass spectrometry (ICP-MS).

Main Results:

  • Measured uranium concentrations ranged from 2.3 to 11 ng (g dry)(-1).
  • Geometric mean concentration was 4.5 ng (g dry)(-1).
  • Daily dietary intake was 2.6 µg d(-1) or 33 mBq d(-1), approximately 40% higher than ICRP reference values.

Conclusions:

  • The estimated annual intake of 238U activity is 12 Bq y(-1).
  • The committed effective dose is 0.54 µSv y(-1), a minor fraction of the public dose limit.
  • Dietary uranium intake in Pakistan poses no significant health hazard to the adult population.