What radiation is increased by flying?

On the Earth's surface, we are relatively shielded from this “galactic radiation” by the atmosphere. However, during high-altitude commercial flights, people are at risk of increased exposure to primary and secondary galactic ionizing radiation and to solar ionizing radiation (see Box 1).



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Experts say that flying on a plane can expose cabin crew members and travelers to ultraviolet (UV) radiation from the sun, which can damage your skin. Planes travel closer to the ozone layer of Earth's atmosphere, which means they're closer to the sun.

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The Earth's atmosphere and magnetic field shield against CIR, but this protection decreases with higher altitudes and more polar latitudes, thereby significantly impacting circumpolar flights operating at cruising altitudes of 35,000 feet or above (10).

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One of the most common risks associated with being a pilot is the physical and mental strain. Pilots must remain alert and focused for long periods of time, often in difficult circumstances. This can lead to fatigue and stress, both of which can have a negative impact on their performance and safety.

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The cramped conditions and long periods of being less active on a flight can cause pain, stiffness or swelling of your legs. Being less active can lead to slow blood flow in your veins which increases your risk of developing a blood clot, known as deep vein thrombosis (DVT).

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6 mSv in a year is a typical radiation doses received by aircrew flying long-haul polar routes. For comparison: 3.0 mSv is an average radiation dose per year received by a person from all sources of radiation. This can range from about 1 to 10 mSv, or more, depending on where people live.

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If the scans are justified for diagnosis or treatment evaluation, there is no set number. For example, even two or more scans in a week or four in a month could be appropriate depending on your particular disease management. Again, for justified imaging scans the risks are low compared with the clinical benefits.

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Takeoff and landing are widely considered the most dangerous parts of a flight.

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Pilot Career Cons
  • You need a deep bank account. While you will earn a lot of money as an airline pilot later down the years, the first few years might cost you up to $100 000. ...
  • A steep learning curve. ...
  • Missing out on holidays. ...
  • A lot of stress. ...
  • Losing your career in an instant because of medical reasons.


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How many pilots suffer from mental illness? This study found 233 (12.6%) airline pilots meeting depression threshold and 75 (4.1%) pilots reporting having suicidal thoughts.

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Chou did the math, and it turns out that frequent fliers actually age the tiniest bit more quickly than those of us with both feet on the ground. Planes travel at high enough altitudes that the weak gravitational field speeds up the tick rate of a clock on board more than the high speeds slow it down.

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