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LG430G | User Guide46
Safety Guidelines
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 long-term
exposures, since the average
period of phone use in these
studies was around three years.
5. What research is needed to
decide whether RF exposure
from wireless phones poses a
health risk?
A combination of laboratory studies
and epidemiological studies of
people actually using wireless
phones would provide some of
the data that are needed. Lifetime
animal exposure studies could
be completed in a few years.
However, very large numbers
of animals would be needed to
provide reliable proof of a cancer
promoting effect if one exists.
Epidemiological studies can provide
data that is directly applicable
to human populations, but 10
or more years follow-up may be
needed to provide answers about
some health effects, such as
cancer. This is because the interval
between the time of exposure to
a cancer-causing agent and the
time tumors develop - if they do-
may be many, many years. The
interpretation of epidemiological
studies is hampered by difficulties