Bedienungsanleitung Pantech Jest (Seite 80 von 182) (Englisch, Spanisch)

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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 predisposed 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

neu-roma, tumors of the brain or salivary gland, leukemia, or other cancers. None

of the studies demonstrated the existence of any harmful health eects 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 eect 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 eects, 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 diculties in measuring

actual RF exposure during day-to-day use of wireless phones. Many factors aect

this measurement, such as the angle at which the phone is held, or which model

of phone is used.

6. What is FDA doing to nd out more about the possible health eects 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 eects of exposure to

radiofrequency energy (RF). FDA has been a leading participant in the World

Health Organization International Electromagnetic Fields (EMF) Project since its

inception in 1996. An inuential 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 the Cellular

Telecommunications & Internet Association (CTIA) have a formal Cooperative

Research and Development Agreement (CRADA) to do research on wireless

phone safety. FDA provides the scientic 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

context of the latest research developments around the world.

7. How can I nd out how much radiofrequency energy exposure I can get

by using my wireless phone?

All phones sold in the United States must comply with Federal Communications

Commission (FCC) guidelines that limit radiofrequency energy (RF) exposures.

FCC established these guidelines in consultation with FDA and the other

federal health and safety agencies. The FCC limit for RF exposure from wireless

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