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of time on their hand-held mobile phones could con-
sider holding lengthy conversations on conventional
phones and reserving the hand-held models for shorter
conversations or for situations when other types of
phones are not available.
People who must conduct extended conversations in
their cars every day could switch to a type of mobile
phone that places more distance between their bodies
and the source of the RF, since the exposure level drops
off dramatically with distance. For example, they could
switch to:
• a mobile phone in which the antenna is located
outside the vehicle,
• a hand-held phone with a built-in antenna con-
nected to a different antenna mounted on the out-
side of the car or built into a separate package, or
• a headset with a remote antenna to a mobile phone
carried at the waist.
Again, the scientific data do not demonstrate that
mobile phones are harmful. But if people are concerned
about the radiofrequency energy from these products,
taking the simple precautions outlined above can reduce
any possible risk.
Where can I find additional information?
For additional information, see the following websites:
• Federal Communications Commission (FCC) RF
Safety Program (select "Information on Human
Exposure to RF Fields from Cellular and PCS
12
Radio Transmitters")
http://www.fcc.gov/oet/rfsafety
• World Health Organization (WHO) International
Commission on Non-Ionizing Radiation Protection
(select Qs & As)
http://www.who.int/emf
• United Kingdom, National Radiological Protec-
tion Board
http://www.nrpb.org.uk
• Cellular Telecommunications Industry Associa-
tion (CTIA)
http://www.wow-com.com
• U.S. Food and Drug Administration (FDA) Cen-
ter for Devices and Radiological Health
http://www.fda.gov/cdrh/consumer/
Footnotes
Muscat et al. Epidemiological Study of Cellular
Telephone Use and Malignant Brain Tumors. In:
State of the Science Symposium;1999 June 20;
Long Beach, California.
Tice et al. Tests of mobile phone signals for activity
in genotoxicity and other laboratory assays. In:
Annual Meeting of the Environmental Mutagen
Society; March 29, 1999, Washington, D.C.; and
personal communication, unpublished results.
Preece, AW, Iwi, G, Davies-Smith, A, Wesnes, K,
Butler, S, Lim, E, and Varey, A. Effect of a 915-MHz
simulated mobile phone signal on cognitive func-
tion in man. Int. J. Radiat. Biol., April 8, 1999.
Guidelines for Safe and Efficient Use
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