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Ultraviolet Light (UV)

Last updated: September 3, 2019

What Does Ultraviolet Light (UV) Mean?

Ultraviolet (UV) light is a form of electromagnetic radiation that falls under the invisible range of the electromagnetic spectrum and is, therefore, invisible to the naked eye.

Safeopedia Explains Ultraviolet Light (UV)

Ultraviolet radiation is generally classified in three sub-divisions:

  • Near ultraviolet
  • Far ultraviolet
  • Extreme ultraviolet

These are distinguished by how energetic the ultraviolet radiation is,

and by the wavelength of the ultraviolet light.

UV light accounts for about 10% of the total light output of the sun. Overexposure to it can cause suntans, freckles, sunburns, and increased risk of skin cancer.


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