Samsung Wave Y GT-S5380D Benutzerhandbuch - Seite 10

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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 phones 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.

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.

What is FDA doing to find out more about the possible health

effects of wireless phone RF?

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 energy (RF).

FDA has been a leading participant in the World Health Organization

international Electromagnetic 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.

FDA and Cellular Telecommunications & Internet Association (CTIA) have

a formal Cooperative Research and Development Agreement (CRADA) to

do research on wireless phone safety. FDA provides the scientific

oversight, obtaining input from experts in government, industry, and

academic organizations. CTIA-funded research is conducted through

contracts to independent investigators. The initial research will include

both laboratory studies and studies of wireless phone users. The CRADA

will also include a broad assessment of additional research needs in the