Assessment of Spatial Exposure to RF Radiation due to GSM 900 and GSM1800 – A Case Study of UCH, Ibadan, Nigeria

An assessment of radiofrequency exposure due to GSM 900 and GSM 1800 was carried out at 30 strategic locations in the University College Hospital (UCH), Ibadan with a frequency selective spectrum analyzer (SPECTRAN HF 60105). The Spectrum analyzer was coupled to a calibrated Omnidirectional antenna to obtain a spatial power density for each location. The mean power densities of 38.37µW/m 2 and 8.68µW/m 2 and maximum power densities of 212.40µW/m 2 and 67.40µW/m 2 were obtained for GSM 900 and GSM 1800 respectively. The standard deviation of 51.3 µW/m 2 and 14.90µW/m 2 were also obtained for GSM 900 and GSM 1800 respectively. GSM 900 and GSM 1800 respectively show compliance level of 0.0047% and 0.00075% with the ICNIRP reference level. Keywords - power density, GSM, radiofrequency, exposure, spectrum analyzer