U.S. watchdog calls for review of cell phone radiation rules

(Reuters) - U.S. regulators should take a fresh look at 15-year-old standards on radiofrequency energy from mobile phones, an investigative arm of the U.S. Congress said on Tuesday amid lingering concerns the devices may cause brain tumors.

Before a mobile phone comes on the U.S. market, it is first tested to ensure its emissions are within a limit determined by the Federal Communications Commission to be safe for human exposure.

But that limit may not reflect the latest research, and testing may not reflect the actual conditions under which mobile phones are used, such as when stored directly against the body in a pocket while someone talks through an ear piece, according to a Government Accountability Office report.

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