Occupational Hygiene Practice Test

Non-ionizing radiation examples include which of the following?

X-ray Gamma rays Ultraviolet (UV), Radiofrequency (RF), Infrared Neutron radiation

Correct Answer:

Ultraviolet (UV), Radiofrequency (RF), Infrared

Explanation:

Non-ionizing radiation consists of energy levels that are too low to remove electrons from atoms; its effects are mainly heating or excitation rather than ionization. Ultraviolet (the common UV ranges), radiofrequency, and infrared radiation have photon energies below the ionization threshold in typical exposure scenarios, so they are classified as non-ionizing. X-ray and gamma-ray photons are highly energetic and readily ionize atoms, while neutrons cause ionization through collisions, so they are considered ionizing radiation. Therefore, the non-ionizing examples are ultraviolet, radiofrequency, and infrared.

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