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TMCNet: Earth Talk / Minimizing cell phone radiation [Commercial Appeal (Memphis, TN)]

[June 21, 2010]

Earth Talk / Minimizing cell phone radiation [Commercial Appeal (Memphis, TN)]

(Commercial Appeal (Memphis, TN) Via Acquire Media NewsEdge) Dear EarthTalk: OK, are cell phones emitting dangerous radiation or not? If so, which phones are safer than others and what do we do to minimize exposure? The jury is still out as to whether or not radiation emitted by cell phones cause negative health effects. Mobile phones emit signals to communicate with cellular towers via radio waves, which are comprised of radio-frequency (RF) energy, a form of electromagnetic radiation.

The U.S. Federal Communications Commission (FCC) limits the amount of radiation any phone sold in the U.S. can emit to what it considers a safe level of 1.6 watts per kilogram of body weight . But some health practitioners are concerned that even this level of exposure may be too high .

Some recent studies have found higher risks for brain and salivary gland tumors among people using cell phones for 10 years or longer, while other research has found little risk.

More studies are now underway to resolve whether or not cell phones are safe for people to use, but some electronics manufacturers aren't waiting around to cut down on the radiation emissions of the phones they make and sell.

If you are in the market for a new cell phone, check out the nonprofit Environmental Working Group's (EWG's) rundown on which of the thousand or so popular models give off the most and least radiation. Levels vary widely, from as little as 0.3 to the legal limit of 1.6 watts per kilogram of body weight.

Nokia's 7710 and the Blackberry Storm, among others, get top marks for giving off lower amounts of radiation. Meanwhile, more than a dozen different cell/smart phones (including popular models such as Motorola's Droid, Blackberry's Bold 9700, LG's Chocolate Touch) are categorized as "worst" by pushing the 1.6 limit. Apple's iPhone 3Gs is in the middle of the spectrum, leaking between 0.52 and 1.19, depending on usage.

You can minimize exposure by taking simple precautions. For one, your phone emits far less radiation when used to text instead of call - and the phone isn't next to your brain when texting. Also, a poor signal (fewer bars) means that your phone has to work harder - and emit more radiation - to connect to a wireless tower. c/o (c) 2010 ProQuest Information and Learning Company; All Rights Reserved.

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