Measurement and mapping of electromagnetic field exposure levels in the city center of diyarbakir and statistical analysis

People are increasingly exposed to radiofrequency (RF) electromagnetic fields (EMF) with rapid development of technology. Therefore, there is a growing concern about RF EMF exposure in society. In this study, RF EMF exposure levels of FM, TV3, TV4-5, GSM 900, GSM 1800 and UMTS bands were measured as mobile on the main streets in the city center of Diyarbakır. Then, mobile measurement values were shown as thematic, three dimensional and contour map on the digital maps. The measurement system consisted of high precision and portable spectrum analyzer, three axis electric field antenna mounted on the top of a car, connection cables and a laptop which was used to record the measurement samples. It was determined that mobile measurement values of six bands were not in normal distribution and variances between independent variables were not homogeneous. Total band was also calculated to determine the total exposure of the six bands. In terms of mean electric field values, contribution of each band to the Total band was arranged as UMTS, GSM900, GSM1800, TV4-5, FM, and TV3 band, respectively. It was observed by the statistical analysis of the measurement values that there was no strong correlation between measurement days of the week, according to Spearman's Rho correlation coefficient. It was determined that all measurement values were below the reference levels of International Commission on Non-Ionizing Radiation Protection.