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What may the impacts of excessive exposure to radiation (such as solar radiation) be?

  • A

    It increases the temperature in the flight crew compartment, causing an increase in stress levels, and resulting in decreased performance.

  • B
    It increases radiation absorption by the skin, stimulating the release of melatonin and darken your skin colour permanently.
  • C
    It may disrupt your circadian rhythm, thus disrupting your sleep pattern, leading to excessive fatigue during the flight.
  • D

    It may cause genetic issues, including harm to unborn children, and could cause cancer.

Learning Objective 040.02.01.03.03: List the effects of excessive exposure to radiation.

The human DNA is protected by a number of repairing enzymes, which detect radiation-induced alterations, extract and replace the affected parts. However, excessive exposure to radiation can overstrain the repair mechanisms, so that permanent changes to the DNA result and are passed on during cell proliferation. Excessive radiation exposure is known to be very damaging to internal organs and the central nervous systems.

Studies have shown that pilots and flight attendants are at higher risk for skin cancer, however even though the production of melanin is increased after sun exposure, the skin colour change is not permanent.

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