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Health and safety information
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Consumer Information on Wireless Phones
The U.S. Food and Drug Administration (FDA) has published a
series of Questions and Answers for consumers relating to
radio frequency (RF) exposure from wireless phones. The FDA
publication includes the following information:
What kinds of phones are the subject of this update?
The term wireless phone refers here to hand-held wireless
phones with built-in antennas, often called “cell,” “mobile,” or
“PCS” phones. These types of wireless phones can expose the
user to measurable radio frequency energy (RF) because of
the short distance between the phone and the user's head.
These RF exposures are limited by Federal Communications
Commission safety guidelines that were developed with the
advice of FDA and other federal health and safety agencies.
When the phone is located at greater distances from the user,
the exposure to RF is drastically lower because a person's RF
exposure decreases rapidly with increasing distance from the
source. The so-called “cordless phones,” which have a base
unit connected to the telephone wiring in a house, typically
operate at far lower power levels, and thus produce RF
exposures well within the FCC's compliance limits.
Do wireless phones pose a health hazard?
The available scientific evidence does not show that any health
problems are associated with using wireless phones. There is
no proof, however, that wireless phones are absolutely safe.
Wireless phones emit low levels of radio frequency energy (RF)
in the microwave range while being used. They also emit very
low levels of RF when in the stand-by mode. Whereas high
levels of RF can produce health effects (by heating tissue),
exposure to low level RF that does not produce heating effects
causes no known adverse health effects. Many studies of low
level RF exposures have not found any biological effects. Some
studies have suggested that some biological effects may occur,
but such findings have not been confirmed by additional
research. In some cases, other researchers have had difficulty
in reproducing those studies, or in determining the reasons for
inconsistent results.