LG Ignite Manual Del Propietário página 115

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 ten 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 in
measuring actual RF exposure
during day-to-day use of wireless
phones. Many factors affect this
measurement, such as the angle at
which the phone is held, or which
model of phone is used.
6. What is the FDA doing to find out
more about the possible health
effects of wireless phone RF?
The FDA is working with the U.S.
National Toxicology Program and
with groups of investigators around
the world to ensure that high priority
animal studies are conducted to
address important questions about
the effects of exposure to Radio
Frequency (RF) energy.
The FDA has been a leading
participant in the World Health
Organization International Electro
Magnetic Fields (EMF) Project since
its inception in 1996. An influential
result of this work has been the
development of a detailed agenda of
research needs that has driven the
establishment of new research
programs around the world. The
project has also helped develop a
series of public information
documents on EMF issues.
The FDA and the Cellular
Telecommunications & Internet
Association (CTIA) have a formal
Cooperative Research And
Development Agreement (CRADA)
to do research on wireless phone
safety. The FDA provides the
scientific oversight, obtaining input
from experts in government,
industry, and academic
organizations. CTIA-funded research
is conducted through contracts with
independent investigators. The initial
research will include both laboratory
studies and studies of wireless
phone users. The CRADA will also
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