Casio BOULDER GzOne User's Guide download pdf (Page 207)

Safety

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.

k 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 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.

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Casio BOULDER GzOne User's Guide Page 207