## 1 Introduction  
The rapid development of technology brings with it the result of living in an intense electromagnetic field. In our homes, there is low (50 Hz) frequency electromagnetic field exposure from the mains, which is required by all electrical household appliances, and from lighting. In addition, there is also broadband-induced electromagnetic field exposure. Technology, which has an important role in shaping society, necessitates living in electromagnetic fields of varying amplitude, from the low-frequency (50 Hz) formed by network and overhead lines to the high-frequency of the Ku (10-12 GHz) band of satellite broadcasts. Especially with the advent of the 5G system, the frequency used in communication has increased, and the damage it has caused on human tissue has increased even more since they have greater energy. Electromagnetic exposure has become a destiny in modern societies. Therefore, knowing both low and GSM-induced electromagnetic field exposure in the environments we live in is very important for the health and mental relaxation of the people in the environment. Based on this result, both low- and broadband-based measurements were made in four places where people living in a home environment spend a lot of time. The measurements were carried out in such a way that the devices saved 1000 data points in their memory for 24 h. In the measurements made, the effective value of the electric field was recorded. The data in all measurements were compared with the limit values determined by the International Radiation Protection Association (ICNIRP). In broadband-based measurements, the band between 700 MHz and 2500 MHz were divided into 15 bands, the band of the data was determined, and their statistical values were calculated. At the same time, the data received from the memory of the devices were plotted in MATLAB, depending on the time. Some studies in this field are presented below. In addition to the low-frequency electric field measurements made in six minutes at 30 different points in the city center of Diyarbakir (Turkey), magnetic field measurements were made under the high voltage line within a one-hour period, and these measurement values were shown graphically. In the 50 Hz electric field measurements made at 30 points, it was noted that the limit value of 5000 V/m determined by ICNIRP was exceeded at three points [1]. Internal substations (TSs) commonly used in Spain are located inside residential buildings on the ground floor. The electromagnetic field emitted by these transformers causes people living in the surrounding buildings to be exposed to these fields. The Spanish municipality of Silla (Valencia, Spain) made measurements to determine the electromagnetic field level that people living in the buildings near these substations are exposed to, especially in places where they spend most of their time, such as bedrooms and living rooms, and whether this level is above the limit values determined in terms of health. In light of the measurements, it is recommended that the rooms in the house where the exposure is low be used as a living room or bedroom [2]. Measurements were made within six minutes in three micro-regions (school, home, and office) where the electromagnetic field is concentrated, and the average value of the field and its percentages in the GSM band are indicated (Belgium) [3]. In this study, a 24-question questionnaire consisting of different variables was applied to 80 selected personnel in Corlu (Tekirdag, Turkey) state hospital to determine the level of electromagnetic field exposure and to investigate its effects on the personnel working in this hospital. In order to determine the electromagnetic field, measurements were made in different parts of the hospital, and according to these measurements and the analysis results of the questionnaire, a statistically significant relationship was found between headache, weakness, irritability, fatigue, and forgetfulness and the electromagnetic field level in the environment where the hospital staff were [4].