What is Non-ionizing radiation?
[[Image:Radio waves hazard symbol.svg|thumb|Non-ionizing radiation [[Hazard symbol|hazard sign]]]] '''Non-ionizing radiation''' (or, esp. in [[British English]], '''non-ionising radiation''') means any type of [[electromagnetic radiation]] that does not carry enough [[energy]] to [[ionization|ionize]] atoms or molecules - that is, completely remove an [[electron]] from an [[atom]] or [[molecule]]. The composition of this radiation can vary depending on what may be ionized. [[Visible light]], [[near ultraviolet]], [[infrared]], [[microwave]] and [[radio]] waves are all examples of non-ionizing radiation, though visible and near ultraviolet can also ionize some molecules. The light from the [[Sun]] that reaches the earth is largely composed of non-ionizing radiation, with the notable exception of some [[ultraviolet]] rays. However, most ionizing radiation is filtered out by the atmosphere. == Related pages == * [[Radio wave]] * [[Ionizing radiation]] [[Category:Electromagnetism]]