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UVC radiation
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UVC radiation

physics
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Quick Summary

UVC is a type of ultraviolet radiation with wavelengths between 200 and 280 nanometers (nm). While it is more hazardous than UVB radiation, it is mostly absorbed by Earth's upper atmosphere. Ultraviolet radiation, in general, is part of the electromagnetic spectrum that extends from visible light to X-rays and is undetectable by the human eye.12

Ultraviolet radiation is produced by high-temperature sources like the Sun. Most of the Sun's ultraviolet radiation is absorbed by the ozone layer in the atmosphere. The portion that reaches Earth's surface is primarily UVA radiation. UVC radiation, due to its bactericidal properties, is used as a research tool and for sterilization.23

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
3 Britannica Sources
  1. UVC
  2. ultraviolet radiation
  3. radiation - Ultraviolet radiation therapy

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