Nokia 6610i User Manual page 112

A P P E N D I X
3. 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 radiofrequency
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 far below the FCC safety limits.
4. What are the results of the research done already?
The research done thus far has produced conflicting results, and many
studies have suffered from flaws in their research methods. Animal
experiments investigating the effects of radiofrequency energy (RF)
exposures characteristic of wireless phones have yielded conflicting
results that often cannot be repeated in other laboratories. A few animal
studies, however, have suggested that low levels of RF could accelerate
the development of cancer in laboratory animals. However, many of the
studies that showed increased tumor development used animals that
had been genetically engineered or treated with cancer-causing
chemicals so as to be pre-disposed to develop cancer in the absence of
RF exposure. Other studies exposed the animals to RF for up to 22 hours
per day. These conditions are not similar to the conditions under which
people use wireless phones, so we don't know with certainty what the
results of such studies mean for human health.
Three large epidemiology studies have been published since December
2000. Between them, the studies investigated any possible association
between the use of wireless phones and primary brain cancer, glioma,
meningioma, or acoustic neuroma, tumors of the brain or salivary gland,
leukemia, or other cancers. None of the studies demonstrated the
existence of any harmful health effects from wireless phone RF
exposures. However, none of the studies can answer questions about
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