Samsung SCH-a610 Manual Do Utilizador

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Usage guidelines: All about performance and safety
147
What research is needed to decide whether RF 
exposure from wireless phones poses a health 
threat?
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. 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 its 
work has been the development of a detailed agenda of 
MetroA610.book  Page 147  Tuesday, July 6, 2004  3:12 PM