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210 Po in the Environment: Reassessment of Dose to Humans

Author

Listed:
  • Saif Uddin

    (Environment Pollution and Climate Program, Kuwait Institute for Scientific Research, Safat 13109, Kuwait)

  • Scott W. Fowler

    (School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, USA
    Present address: Institute Bobby, 8 Allée des Orangers, 06320 Cap d’Ail, France.)

  • Montaha Behbehani

    (Environment Pollution and Climate Program, Kuwait Institute for Scientific Research, Safat 13109, Kuwait)

Abstract

Significant efforts have been made by the International Commission on Radiological Protection (ICRP) to establish a reliable basis of equivalent and effective doses due to radionuclides. The ICRP over years has been updating the dose coefficients to include recent developments and make it more realistic. This perspective highlights some issues that warrant updating the methodology used for estimating 210 Po dose to humans. The need to underpin these dose coefficients with ever-increasing literature has encouraged us to share the observation on the significant loss of 210 Po due to seafood cooking, considering the loss due to cooking warrants changing the factor for the dose from seafood ingestion. Most dose assessment approaches use whole-body concentration, while most 210 Po is present in the liver and digestive system that often are not part of the edible portion. The other factor is the extremely high 210 Po concentration in aerosols as a result of coal and oil-fired power plants, forest fires, and volcanic activities, especially in the inhalable fraction. The 210 Po/ 210 Pb concentration ratio in the Gulf was observed to be between 1.6 and 1.9 in contrast to the 0.1 ratio observed in non-impacted areas. This reassessment of the inhalation dose is also relevant globally due to increasing incidences of forest fires where a much higher than 0.1 210 Po/ 210 Pb ratio is expected and will result in a significant inhalation dose.

Suggested Citation

  • Saif Uddin & Scott W. Fowler & Montaha Behbehani, 2023. "210 Po in the Environment: Reassessment of Dose to Humans," Sustainability, MDPI, vol. 15(2), pages 1-9, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:2:p:1674-:d:1036561
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    References listed on IDEAS

    as
    1. Montaha Behbehani & Fernando Piedade Carvalho & Saif Uddin & Nazima Habibi, 2021. "Enhanced Polonium Concentrations in Aerosols from the Gulf Oil Producing Region and the Role of Microorganisms," IJERPH, MDPI, vol. 18(24), pages 1-20, December.
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      Keywords

      inhalation; ingestion; 210 Pb; ICRP;
      All these keywords.

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