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Radiation dose to the global flying population.

Luis E Alvarez1, Sebastian D Eastham, Steven R H Barrett

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Journal of Radiological Protection : Official Journal of the Society for Radiological Protection
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Civil airliner passengers and crew face higher radiation exposure. Frequent flyers, especially on Europe and North America routes, may exceed annual radiation dose limits, necessitating route-specific assessments.

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Area of Science:

  • Aviation medicine
  • Radiation dosimetry
  • Public health

Background:

  • Civil airliner passengers and crew experience increased radiation exposure compared to ground level.
  • Prior research focused on specific flight scenarios or cohort studies for radiation dose assessment.

Purpose of the Study:

  • To provide the first global estimate of total radiation dose for the worldwide civilian flying population.
  • To identify flight hours at which annual radiation dose limits are exceeded.

Main Methods:

  • Global flight simulations were conducted from 2000 to 2013 using flight schedule data.
  • A radiation propagation code was employed to estimate radiation dose for each simulated flight.

Main Results:

  • Passengers flying in Europe and North America can exceed the International Commission on Radiological Protection annual dose limits.
  • Exceeding limits occurs at an average of 510 flight hours (Europe) or 420 flight hours (North America) annually.
  • On specific high-exposure routes, dose limits can be reached with as few as 160 (Europe) or 120 (North America) flight hours.

Conclusions:

  • The study provides a comprehensive overview of radiation exposure for global air travelers.
  • Findings highlight the importance of considering flight duration and specific routes for radiation dose management in aviation.
  • Regular air travelers, particularly on transatlantic and transpacific routes, may warrant further investigation regarding radiation safety.