International management recommendations

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✔︎The International Commission on Radiological Protection (ICRP) classifies cosmic radiation as an existing exposure. It acknowledges that flight crew members, due to prolonged exposure, receive higher radiation doses than the general public. The ICRP recommends using an annual dose reference level of 5–10 mSv for flight crew to facilitate appropriate safety management measures. Most countries follow this recommendation, and gradually implementing safety management for flight crew radiation exposure through self-regulation or legislation. In practice, an annual dose reference level of 6 mSv is commonly adopted by most nations.

✔︎ICRP recommendations for the management of cosmic ray exposure

Object	Suggested management approach	Classification
Occasional air travelers	●Information dissemination	General public exposure
Aircrew	●Education and awareness ●Personnel dose assessment and record keeping ●Appropriate adjustment of flight schedules	Occupational exposure

✔︎The figure below summarizes the average annual radiation dose of aircrew evaluated through process in international literature, which is roughly in the range of 1-3 mSv per year. This result is consistent with the average annual dose range for aircrew mentioned in the IAEA GSG-7 report of 1-3 mSv per year.

✔︎According to ICRP Publication 132, current epidemiological studies have not established a clear correlation between flight crew working hours, cosmic radiation exposure, and associated cancer risks. Further evaluation of multiple potential risk factors is required to better understand any possible connections.

更新時間：2025-03-04 14:53