
(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.
What is FDA's role concerning the safety of wireless phones?
Under the law, FDA does not review the safety of radiation-emitting
consumer products such as wireless phones before they can be sold,