Effect of mobile systems on human health

The developments of mobile communication in few years ago raised many questions about the effects of electromagnetic fields (EMF), which produced from these devices on human health. These question related to people living nearby the mobile station, therefore so many studies researches these problems have been done, which give criteria for measuring the level of EMF, and these called federal communication commission - exposure standard (FCC-ES). In general the human will be in safe when the EMF is less than FCC-ES and the direction of antenna beam is not directed to around building , as well as its location should be many meters above the roof. In this paper the following points are studied: 1-measuring the level of EMF in different distance of antenna of a base station in Aleppo city (using the equipments of antenna Lab. in the Communication department at the Faculty of Electrical and Electronic Engineering-University of Aleppo). 2-comparison these measuring results with FCC-ES. The results show that the high signal level is in around the base station in diameter of (50-100) m, and the high power density is near its equipments including connectors with antenna.