VDT radiation

VDT radiation

The electromagnetic radiation emitted from a computer display screen. Exhaustive testing so far seems inconclusive, but vendors recommend keeping the face at least 18 to 20 inches from the screen. Flat panel displays emit considerably less radiation than a CRT.
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In simplified terms, the VDT radiation guideline set by MPRII suggests a limit of 2.5 milligauss at 20 centimeters from the monitor.
Robert Brenner (1991) suggests four ways to protect oneself from VDT radiation: (1) install a radiation screen over the face of the display unit; (2) distance yourself from the screen; (3) use an MPR II-certified low frequency monitor; or (4) use a laptop or personal computer with a liquid-crystal-display screen.
Like all forms of radiation, VDT radiation creates electric and magnetic fields.
Scientists agree that the small amount of middle- and high-frequency VDT radiation escaping despite the protective shielding does not pose a hazard.