Sun lamps and tanning salons: the ultraviolet rays from sun lamps and tanning salons are as damaging to skin as the ultraviolet rays of the sun.X-ray emissions from CRT monitors are not recognized as a significant health risk. Older televisions and computer monitors that contain CRTs may emit x-rays. Televisions and monitors: Flat-screen televisions and monitors (e.g., LCD, OLED, plasma) do not use cathode ray tubes (CRTs) and therefore do not produce ionizing radiation.Unless gas lantern mantels are used as the primary light source, radiation exposure from thorium lantern mantles is not considered to have significant health impacts. Gas lantern mantles: older, and some imported, gas lantern mantles generate light by heating thorium (primarily thorium-232).The health risk from using older camera lenses is low the radiation received when using a thoriated lens camera is approximately equal to natural background. Older camera lenses: some camera lenses from the 1950s-1970s incorporated thorium into the glass, allowing for a high refractive index while maintaining a low dispersion.Learn more about tritium and radium on the Radionuclides webpage. Avoid opening these items because the radium could flake off and be ingested or inhaled. Older watches and clocks (made before 1970) may contain radium-226 paint on dials and numbers to make them visible in the dark.
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