Impact of one's own mobile phone in stand-by mode on personal radiofrequency electromagnetic field exposure.
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Date
2013-08-21
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Abstract
When moving around mobile phones in stand by mode periodically send data about their positions The aim of this paper is to evaluate how personal radiofrequency electromagnetic field RF EMF measurements are affected by such location updates Exposure from a mobile phone handset uplink was measured during commuting by using a randomized cross over study with three different scenarios disabled mobile phone reference an activated dual band phone and a quad band phone In the reference scenario uplink exposure was highest during train rides 1 19 mW m 2 and lowest during car rides in rural areas 0 001 mW m 2 In public transports the impact of one s own mobile phone on personal RF EMF measurements was not observable because of high background uplink radiation from other people s mobile phone In a car uplink exposure with an activated phone was orders of magnitude higher compared with the reference scenario This study demonstrates that personal RF EMF exposure is affected by one s own mobile phone in stand by mode because of its regular location update Further dosimetric studies should quantify the contribution of location updates to the total RF EMF exposure in order to clarify whether the duration of mobile phone use the most common exposure surrogate in the epidemiological RF EMF research is actually an adequate exposure proxy