Flight crew members, including flight attendants and pilots, face a heightened risk of radiation-related cancers compared to individuals working with radioactive substances, as per a recent study. Cosmic radiation, originating from space, poses a greater exposure risk for individuals flying at elevated altitudes due to limited Earth surface penetration. Past studies have hinted at increased cancer mortality rates among frequent flyers, especially pilots and flight attendants.
The study, published in JAMA Internal Medicine, analyzed data from over 12 million death certificates, focusing on cancer death rates linked to radiation exposure. Among more than 500 occupations, flight attendants exhibited the highest percentage of radiation-related cancer deaths, followed by pilots. Notably, both groups did not show elevated death rates from non-radiation-related cancers, affirming the impact of occupational radiation exposure.
The research highlighted the challenges of pinpointing the primary sources of exposure, with cosmic radiation, UV-A light, and circadian disruption co-occurring. Factors such as jet lag, time zone changes, and irregular schedules may exacerbate cancer risks in flight crews. Despite acknowledging the radiation exposure risks, the Federal Aviation Administration lacks federal dose limits or monitoring requirements for aircrews.
The study authors emphasized the importance of raising awareness and implementing preventive measures, such as regular skin screenings and early mammograms for female crew members. Flight crew health professionals were advised to maintain a vigilant approach to cancer detection in these individuals. The findings underscore the urgent need for proactive measures to address radiation-related health risks among flight staff.
