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The Long Island Power Authority did a study where they measured the average EMF radiation from many home appliances. How Much EMF Radiation Do Computer Monitors Emit? The bottom line is to make sure you at least keep a few feet away from your computer monitor. In fact, a study showed that the radiation emitted from a monitor was enough to destabilize the oxidant/antioxidant balance in the cornea’s of rats over even a small amount of time. This amount of radiation is enough to cause damage over time.
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As you can see from the video above when he is testing an LCD monitor, there is still a noticeable amount of EMF radiation, but you have to be quite close. The EMF Radiation from your computer monitor will be relatively small and come from circuitry in the back of the unit. Luckily they make screen protectors for computer monitors that not only block 100% of the UV light but also help to filter out blue lights that can cause computer vision syndrome (CVS) from longterm exposure to computer monitors. When the ultraviolet light strikes a white phosphor, the visible light that you see is created, but it has the side effect of sometimes leaking ultraviolet light out. Some monitors actually have a fluorescent lamp that is part of the illumination. Ultraviolet light (UV) is much less harmful than x-ray radiation, but high amounts over a long period of time can still certainly cause harm. Ultraviolet light Radiation from monitors. The EMF meter that the gentleman is using in this video is the older version of the Trifield meter, the company now has the new TriField TF2 ( read my review), but we’ll talk about that a bit more down below in the section about measuring computer monitor radiation. However, if you take a look at the following video, you’ll see just how much more radiation these monitors are capable of emitting. Later versions of CRT monitors were slightly safer, as manufacturers began to take steps to reduce this x-ray radiation by adding lead to the cathode ray tube, which helped to cut down on this issue. This is the reason that they have you wear led vests to protect your body from the radiation. The electronics in these old monitors generated extremely high voltages that would often result in x-ray radiation.Īlthough x-radiation that you could receive from one of these older style CRT monitors is dangerous and harmful, it is much less than you would receive from a medical x-ray machine or the x-ray at the dentist. This led to the manufacturing of Light Emitting Diode (LED) and liquid crystal display (LCD), which is what I used for nearly all modern monitors ( and televisions) X-Ray Radiation From MonitorsĮxposure to x-radiation is obviously extremely harmful and is an unfortunate bi-product of older style cathode ray tube (CRT) type monitors. Although this had been recognized since the 60’s as being dangerous, it was not until the late 1990’s that manufacturers really fell under scrutiny for continuing to make a knowingly dangerous product.
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However, these types of monitors generate, and leak, small amounts of highly dangerous X-Ray Radiation. Prior to about 2001, almost all monitors were using cathode-ray tube (CRT) technology to power the screens. There are basically two categories of monitors: cathode-ray tubes, and the flat-screen monitors that you see today, which are typically either LED or LCD based screens. Let’s talk a little bit about each kind.įirst, to understand this, let’s talk a little bit about the different types of computer monitors. Which radiation, and how much they emit, will depend largely on the monitor. There are primarily three types of radiation sources that a computer monitor is likely to have, UV light radiation, x-ray radiation, and EMF radiation. I would love for you to take just a minute and check out Nicolas Pineault’s groundbreaking E-book “ A Non-Tinfoil Guide To EMFs.” It is the most entertaining and informative book on EMF radiation you’ll ever read, I promise.) What Types of Radiation Do Computer Monitors Emit?
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In this post, I’m going to tell you how computer monitors emit EMF radiation, how much they emit, how you can test this, and what you can do about it. However, newer monitors emit far less than the old CRT versions. Do Computer monitors emit radiation? Yes, they do, but it might be different than what you would think.Īll sorts of devices emit EMF radiation, and your computer monitor is no different.