The possible hazardous health effects of exposure of humans to electromagnetic radiations (EMR) emitted from mobile phone base station has caused concern to the general public. The concerns on the perceived negative effects of EMF radiations from mobile phone base transceivers led to agitations against the erection of base transceiver stations (BTS). Therefore, the measurement of levels of electromagnetic field (EMF) exposure to the public and the possible potential hazard are essential. Measurements due to public exposure to electromagnetic radiation from the BTS at various locations at Abeokuta were made using a Broad band TES-90 Electrosmog meter. Measurements were carried out from 62 base stations in Abeokuta after surveying with global positioning system (GPS) meter. The maximum power density for Global System of Mobile (GSM) Telecommunication signal at BTS was 9.02 × 10-4 mWcm-2 at 2 m radius and the mean value of power densities obtained from the entire base stations was 3.61 × 10-4 mWcm-2 at 2 m radius from different BTS. The maximum and average power density from all the studied base station antennas in Abeokuta were much less than the 1 mWcm-2 limit set for public exposure by International Commission on Non-Ionizing Radiation (ICNIRP). The measurement of power densities at various distances from BTS-49 shows how the power density changes according to the change of distance from the base station. This however suggests that government and industries must encourage science and promote research to further ascertain the level of EMF radiation exposure from BTS and determine health effect.
Keywords: Electromagnetic fields, base station, Abeokuta, Ogun State, Nigeria.