ID Number		1063
Study Type		Engineering & Physics
Model		900, 1800 MHz (GSM) mobile phone use and analysisi of average transmit power from base station data
Details		Volunteers in the Stockholm, Sweden area (all with Telia Mobile service) were monitored for 1 week using a base station software to determine power control levels during active calls (sampling every 450 ms). The authors report transmit power (in watts) was highest in the rural region, followed by suburban, city, and small town. For the 900 MHz data, the lowest and highest power output levels were the most frequently used. The authors concluded that there was a need for individual exposure assessment for epidemiologic studies, and that the degree of urbanization may be an important parameter to consider in epidemiologic dose assessment of RF exposure from mobile phone use. The authors further state that "while the weight of evidence does not suggest adverse effects [of mobile phone use], negative results cannot be considered conclusive".
Findings		Not Applicable to Bioeffects
Status		Completed With Publication
Principal Investigator		Karolinska Institute, Sweden
Funding Agency		Private/Instit.
Country		SWEDEN
References		Lonn, S et al. Occup Environ Med, (2004) 61:769-772
Comments		This is all power control data from the base station - no information on the actual transmit power of the phone, not to mention other user variables that can influence SAR. Anders Ahlbom is head of the IARC study in Sweden