AT&T Quickfire User Manual download pdf (Page 145)

SAFETY

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 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.

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AT&T Quickfire User Manual Page 145