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The acquisition and use of mobile phone is tremendously increasing especiallyin developing countries, but not without a concern. The greater concern amongthe public is principally over the proximity of mobile base stations (MBS) toresidential areas rather than the use of handsets. In this paper, we present anassessment of Radio-Frequency (RF) radiation exposure level measurements andanalysis of radiation power density (in W/sq m) from mobile base stationsrelative to radial distance (in metre). The minimum average power density fromindividual base station in the town was about 47uW/sq m while the averagemaximum was about 1.5mW/sq m. Our result showed that average power density of abase station decreased with increase in distance (away from base station) andthat radiation intensity varies from one base station to another even at thesame distance away. Our result (obtained signature of power density variationfrom data) was also compared the with an 'expected' signature. It was foundthat radiation from external sources (indicative) interfered with the referencebase station and accounted for the deviation observed in this study. Finally,our result showed that the RF exposure hazard index in the town of Lokoja wasbelow the permitted RF exposure limit to the general public recommended byICRNIP. Useful recommendations were also made to the Policy and RegulatoryAgencies responsible to Telephony in Nigeria.

Assessment of Radio-Frequency Radiation Exposure Level from Selected Mobile Base Stations (MBS) in Lokoja, Kogi State, Nigeria