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AN ESTIMATION OF THE EXPOSURE OF THE POPULATION OF ISRAEL TO NATURAL SOURCES OF IONIZING RADIATION.

L Epstein1,2, J Koch1, T Riemer1

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|March 25, 2017
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Summary
This summary is machine-generated.

The average annual radiation dose for Israelis from natural sources is 2 mSv, with radon inhalation being the primary contributor. This assessment covers cosmic, terrestrial, and internal radiation exposure pathways.

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Area of Science:

  • Environmental Science
  • Radiation Protection
  • Public Health

Background:

  • Natural sources of ionizing radiation pose a significant exposure risk to populations worldwide.
  • Understanding regional variations in radiation exposure is crucial for public health risk assessment.
  • Israel's population is exposed to various natural sources, necessitating a comprehensive dose assessment.

Purpose of the Study:

  • To assess the total annual radiation dose to the population of Israel from natural sources.
  • To identify the main contributors to this radiation dose.
  • To establish a baseline for radiation protection strategies in the region.

Main Methods:

  • Radon inhalation dose was determined by integrating survey data from houses and apartments.
  • Cosmic radiation dose was calculated using a code considering altitude and solar cycle variations.
  • Terrestrial radionuclide doses were assessed using indoor/outdoor models and geological/aerial survey data.

Main Results:

  • Radon inhalation accounts for the largest portion of the dose, averaging 1.2 mSv annually.
  • Cosmic and external terrestrial radiation contribute 0.2 mSv each.
  • Internal exposure (excluding radon) adds an additional 0.4 mSv, resulting in an overall average of 2 mSv per year.

Conclusions:

  • The overall annual radiation dose to the Israeli population from natural sources is estimated at 2 mSv.
  • Radon is the predominant source of natural radiation exposure in Israel.
  • The findings provide essential data for national radiation protection policies and public health initiatives.