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The radiation from your computer monitor is so low that there should not be any effect on you at all. There are standards that must be met to make sure that there is no excessive emissions. Modern TV sets and computer monitors have very low radiation emission, and is not dangerous for the users. In theory, any amount of radiation is not healthy for living tissue. There are many publications about this subject, which may be found on the net, and in various study publications. The degree of effect is very controversial, and not very decisive when it comes to very low intensities, that are at the level from any consumer electronics. CRT monitors emit some X-Ray radiation from the rear walls of the tube, but there is almost no radiation from the front of the CRT. There is a metal shielding or shroud around the wall or bell of the tube that is supposed to block or shield the radiation down to a lower level. The main circuit boards are also shielded to prevent any spurious RF or electromagnetic radiation from the various components that make up the circuits of operation. This helps more for radio frequency interference than anything else. RF radiation is dangerous from some types of communications equipment, high power transmitter equipment, defective microwave ovens where the door or enclosure seals are defective, and other similar devices. As for the TFT or LCD screens, these have very little emission compared to the CRT type monitors. This type of technology has reduced eyestrain because there is no flicker, and no radiation of any type that cause tiredness. It has been found that these LCD screens made employees have a higher output of work from their work stations, due to less fatigue. There was also less sick leave from employees using this type of screen. There is no X-Ray or UV radiation coming off this type of screen to the user. The electromagnetic and RF radiation is also much lower from the LCD type screens. Overall they are a lot healthier to use. LCD screens have a lot less power consumption, thus contributing to the environment for savings of fuel, and electricity production costs. The typical LCD screen uses about 40 Watts to about 50Watts, while the typical CRT type screen would consume about 160 Watts on the average. This is about a 3 times cost savings for power consumption. Over a 3 to 5 year period of use, this is a substantial savings just in the power consumption alone. -- Greetings, Jerry Greenberg GLG Technologies GLG ========================================= WebPage http://www.zoom-one.com Electronics http://www.zoom-one.com/electron.htm ========================================= "Michael Liebman" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] "JohnB" <[EMAIL PROTECTED]> wrote in news:vp5cfv5c6da3e4 @corp.supernews.com: > Where is radiation threats to human health addressed? Google for 'non-ionizing radiation crt.' You'll get some good info from the first few hits. OSHA probably sets the regulatory limits in the US. However, the WHO basically says EMF from CRTs has been found to have no effect on humans, standards specific to CRTs and LCDs may not exist. According to the WHO, eye strain is the most signficant concern for use of CRTs (http://www.who.int/inf-fs/en/fact201.html). Michael -- Michael Liebman "I sig, therefore I am." To reply via email, remove "-DO-REI-ME" from my address.
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