103
Safety
ManufacturersofwirelessphonesmustreporttheRFexposurelevelfor
eachmodelofphonetotheFCC.TheFCCwebsite(http://www.fcc.gov/
cgb/cellular.html)givesdirectionsforlocatingtheFCCidenticationnumber
onyourphonesoyoucanndyourphone’sRFexposurelevelintheonline
listing.
8. What has the FDA done to measure the Radio Frequency energy
coming from wireless phones?
TheInstituteofElectricalandElectronicEngineers(IEEE)isdevelopinga
technicalstandardformeasuringtheRadioFrequency(RF)energyexposure
fromwirelessphonesandotherwirelesshandsetswiththeparticipationand
leadershipofFDAscientistsandengineers.Thestandard,“Recommended
PracticeforDeterminingtheSpatial-PeakSpecicAbsorptionRate(SAR)in
theHumanBodyDuetoWirelessCommunicationsDevices:Experimental
Techniques”,setsforththerstconsistenttestmethodologyformeasuring
therateatwhichRFisdepositedintheheadsofwirelessphoneusers.
Thetestmethodusesatissue-simulatingmodelofthehumanhead.
StandardizedSARtestmethodologyisexpectedtogreatlyimprovethe
consistencyofmeasurementsmadeatdifferentlaboratoriesonthesame
phone.SARisthemeasurementoftheamountofenergyabsorbedin
tissue,eitherbythewholebodyorasmallpartofthebody.Itismeasured
inwatts/kg(ormilliwatts/g)ofmatter.Thismeasurementisusedto
determine
whetherawirelessphonecomplieswithsafetyguidelines.
9. What steps can I take to reduce my exposure to Radio Frequency
energy from my wireless phone?
Ifthereisariskfromtheseproducts-andatthispointwedonotknowthat
thereis-itisprobablyverysmall.Butifyouareconcernedaboutavoidingeven
potentialrisks,youcantakeafewsimplestepstominimizeyourexposureto
RadioFrequency(RF)energy.Sincetimeisakeyfactorinhowmuchexposurea
personreceives,reducingtheamountoftimespentusingawirelessphonewill
reduceRFexposure.Ifyoumustconductextendedconversationsbywireless
phoneeveryday,youcouldplacemoredistancebetweenyourbodyandthe
sourceoftheR F, sincetheexposureleveldropsoffdramaticallywithdistance.
Forexample,youcoulduseaheadsetandcarrythewirelessphoneawayfrom