Authors: Ayinmode BO* , Farai IP, Olawole OC**, Ajibade KE, Akinmeji SO, Akinwumi SA and Ariyo M
There are about 8.9 billion mobile phone subscriptions globally, and most subscriptions in developing countries still use 2G and 3G mobile standards. The impact of electromagnetic radiation from these devices on humans is of major concern. There is a need to assess the level of radiofrequency radiation in the immediate environment of common mobile phones in real-life exposure scenarios. The electric field intensity (E) in approximately 60 common 2G and 3G mobile phones was assessed using a standardised handheld spectrum analyser and a broadband meter. The highest value of E at about 10 cm from the selected 3G and 2G mobile phones during spectral measurements was 0.20 V/m and 0.33 V/m, with an average value of 0.11 V/m and 0.17 V/m, respectively. The highest E-field values from the 3G and 2G phones during broadband measurements were 33.01 V/m and 76.52 V/m, respectively. The exposure due to a signal from the selected 3G and 2G phones is about 0.76 % and 0.35 % of the total radiofrequency radiation exposure around the phones during initiated calls on average. Based on the ICNIRP recommendations, the signals from selected mobile phones in this study do not pose a thermal health risk to humans.
Keywords: Mobile Phone; Radiofrequency; Electromagnetic Field; Radiation Exposure
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