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8. What has the FDA done to measure the radiofrequency energy coming from
wireless phones?
The Institute of Electrical and Electronic Engineers (IEEE) is developing a technical
standard for measuring the radiofrequency energy (RF) exposure from wireless phones
and other wireless handsets with the participation and leadership of FDA scientists and
engineers. The standard, ‘Recommended Practice for Determining the Spatial- Peak
Specific Absorption Rate (SAR) in the Human Body Due to Wireless Communications
Devices: Experimental Techniques,’ sets forth the first consistent test methodology for
measuring the rate at which RF is deposited in the heads of wireless phone users. The
test method uses a tissuesimulating model of the human head. Standardized SAR test
methodology is expected to greatly improve the consistency of measurements made
at different laboratories on the same phone. SAR is the measurement of the amount
of energy absorbed in tissue, either by the whole body or a small part of the body.
It is measured in watts/kg (or milliwatts/g) of matter. This measurement is used to
determine whether a wireless phone complies with safety guidelines.
9. What steps can I take to reduce my exposure to radiofrequency energy from
my wireless phone?
If there is a risk from these products - and at this point we do not know that there is - it
is probably very small. But if you are concerned about avoiding even potential risks,
you can take a few simple steps to minimize your exposure to radiofrequency energy
(RF). Since time is a key factor in how much exposure a person receives, reducing
the amount of time spent using a wireless phone will reduce RF exposure. If you must
conduct extended conversations by wireless phone every day, you could place more
distance between your body and the source of the RF, since the exposure level drops off
dramatically with distance. For example, you could use a headset and carry the wireless
phone away from your body or use a wireless phone connected to a remote antenna.
Again, the scientific data does not demonstrate that wireless phones are harmful. But if
you are concerned about the RF exposure from these products, you can use measures
like those described above to reduce your RF exposure from wireless phone use.
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