Flight attendants and pilots face a higher risk of radiation-related cancers compared to those working with radioactive materials, as per a recent study. Cosmic radiation, originating from space and mostly reaching high altitudes, poses increased exposure risks to individuals in flight. Previous smaller studies hinted at elevated cancer mortality rates among frequent flyers, especially pilots and flight attendants.
An Australian commentary praised the new study for providing crucial evidence on this issue, highlighting the unique occupational risks faced by aircrew members. The study analyzed over 12 million death certificates, focusing on cancer types linked to radiation exposure. Among more than 500 professions, flight attendants had the highest percentage of radiation-related cancer deaths, followed by pilots. The study indicated significantly higher odds of dying from radiation-related cancers for both groups, with no abnormal death rates from non-radiation-related cancers.
The commentary challenged assumptions that excess skin cancer risks among flight crews stemmed from sunny layovers, suggesting cockpit environments as crucial exposure areas. Flight attendants showed a 50% higher likelihood of dying from radiation-related cancers compared to the general workforce, with pilots at a 36% higher risk. Despite some study limitations, such as exposure measurement uncertainties, the study emphasized the complexity of overlapping exposures like cosmic radiation and UV-A light.
The study called attention to low awareness of risks and lack of federal regulations regarding radiation exposure for aircrews. The absence of federal dose limits and monitoring was noted, with concerns raised by union representatives about inadequate education and responsibility regarding radiation risks. Recommendations included regular skin exams for high-altitude workers, earlier mammograms for female crew members, and heightened cancer vigilance by healthcare providers for pilots and flight attendants.