« A discussion on cosmic radiation monitoring for airline pilots. Video below »

The Belgian Cockpit Association (BeCA) recently held a constructive meeting with the Federal Agency for Nuclear Control (FANC) to discuss the monitoring of cosmic radiation exposure among airline pilots in Belgium. Cosmic radiation, originating from the sun and space, is a well-known occupational risk for flight crews. The meeting addressed both the current state of monitoring and opportunities for improvement.

Low dose levels, but relevant over a full career

FANC presented a clear and informative overview of cosmic radiation, how it affects flight crews, and how exposure levels compare to those in other radiation-exposed professions. While the doses received by pilots are relatively low compared to a standard medical X-ray – the cumulative effect over a long career is not negligible. Given the increase in retirement age, exposure can now span up to 10–13 years longer than before.

Airlines improving data reporting

In 2023, FANC visited all Belgian airlines to remind them of their obligation to report cosmic radiation exposure data for their crew members. Since then, a noticeable improvement in data transfer has been observed: some airlines respond quickly and thoroughly, while others take more time.

Key points for improvement

During the meeting, BeCA raised several critical issues:

• Training and awareness: While training is available, the content is often not well tailored to flight crew needs.
• Access to personal exposure records: Crews sometimes face difficulties obtaining their own radiation data.
• Pregnant flight crew: Pregnant pilots should receive specific, timely information about potential fetal risks to encourage early declaration to their employer.

Aviation-specific challenges

The unique structure of the aviation industry — including contractors, wet leases, and multi-national home bases — complicates the question of responsibility for radiation data management. BeCA proposed the creation of a European radiation database to facilitate access to complete career records, especially for pilots operating across multiple countries.

Why this data matters

BeCA emphasized the importance of collecting medical statistics alongside radiation dose data. This would enable stronger evidence-based conclusions about long-term health risks, such as cancers, and support the recognition of related conditions as occupational diseases.

A proposal was also made to include optional annual blood tests, similar to those carried out for nuclear plant workers, during pilots’ license renewal medicals. These could be performed by occupational physicians, as it is not in AME’s mandates, and could improve early disease detection and increase recovery chances through early intervention.

Looking ahead: space weather and awareness materials

BeCA also introduced a test-phase project on space weather forecasting, aimed at adjusting flight paths during periods of intense solar activity to reduce crew exposure.

more info on the FANC website: https://afcn.fgov.be/fr/professionnels/radioactivite-naturelle/rayonnement-cosmique