299 ICI Bucharest © Copyright 2012-2019. All rights reserved ISSN: 1220-1766 eISSN: 1841-429X 1. Introduction The basic issue of electromagnetic radiation (EMR) generated by electromagnetic field installations and the effects on the natural and artifcial environment is the subject of many scientifc, technological and regulatory concerns. In the present paper we will refer to EMF on industrial frequency generated by power plants (power lines, power substations etc.) will be approached, with certain effects in its presence area, of which evaluation and counselling are subject to intense concerns without defnite results from the international scientific community. In (Billel, Abdesselam and Zhang, 2001), the experimental results obtained as a consequence of the electromagnetic radiation (EMR) level investigation in an interconnection power station (PS) - 220/90/60/30 kV- is presented. Further, the methodology for measuring the two EMF characteristic vectors (E - electric feld strength, B – magnetic fux density) is presented. The obtained results are compared to the limits established by the standards, without referring to the concrete ways of evaluating the effects. The EMF modelling of high power equipment - the arc furnace, is the subject of the paper (Pănoiu et al., 2009), without reference to the effects of EMF’s presence. The application of artifcial neural networks to solve the interference problems of EMF generated by the high voltage power lines (HVPL) is the subject of the paper (Dan, 2012). To evaluate the effect of EMF on underground metallic pipes, the authors propose to use the magnetic vector potential (MVP) comprising only the EMF magnetic component and not referring to the effects on living organisms. The main physical phenomena that characterize the exposure in electric feld are (Cleveland, 2005, Caputa et al., 2002 and Felea et al., 2010): direct perception, the accumulation of electric charge by induction as this phenomenon is emphasized by increasing the speed variation of EMF characteristic vectors with load variation in transient regimes. Parameters characterizing the biological effects of the exposure of the human body in electric feld are: electric feld strength (E) and induced current density (J). The presence of the human body affects the spatial distribution of an electric feld. The analysis of effects is conducted by evaluating the two parameters (E, J), and applying the laws of Electrical Engineering (Hănţilă et al., 1997), given the quantities of material values (conductivity and permittivity). In assessing the effects of electric feld on the human body both values and the current distribution play an important role. These size ratings are used to assess simulation methods and experimental approaches based model. Characteristic sizes (CS) for the biological effects of magnetic feld are magnetic fux density (B) and induced current density (J). The link between the two parameters is based on the law of electromagnetic induction and electric conduction law, having the infuence factor as equivalent for the conductivity of the human body (Caputa et al., Studies in Informatics and Control, 28(3) 299-308, September 2019 https://doi.org/10.24846/v28i3y201906 A Fuzzy Approach for the Treatment of the Human Diseases Resulting from Exposure to Electromagnetic Fields Ioan FELEA 1 , Marius LOLEA 1 , Simona DZITAC 1, 2* 1 University Of Oradea, 1 Universitatii, Oradea, 410087, Romania ioanfelea@gmail.com, mlolea@yahoo.com 2 Cercetare Dezvoltare Agora, 8 Piata Tineretului, Oradea, 410526, Romania simona@dzitac.ro (*Corresponding author) Abstract: Among the current risks of (non-specifc) occupational diseases or risks of persons, one may also include the risk of exposure to electric, magnetic and electromagnetic felds (EMF). This problem has been in the hands of specialists for about six decades, but the questions regarding EMF effects and the admissible limits of the EMF’s characteristic sizes have still not been answered. This paper aims to increase the accuracy of the EMF effects assessment on people exposed to stabilized regime areas of power plants. Firstly, the problem proposed to be solved is presented. Secondly, the fuzzy approach to the treatment we propose for assessing the severity caused by the human exposure to the stationary EMF is put forward together with all the particularities and modalities of fuzzy treatment in this case. The paper contains applications based on experimental data related to the assessment of the consequences of EMF exposure from one power substation. The fnal part of the paper presents the conclusions of the treatment and the developed applications. Keywords: Electromagnetic feld, Effects, Fuzzy modelling, Stabilized regime.