Impact Evaluation of Electrical Equipments on Human Health

摘要

The complex character of the issues the scientific community is confronted with at present includes, besides chemical pollution, exposure to electromagnetic fields of different intensities and frequencies. If chemical pollution has made the object of numerous studies with actual results, the effects of exposure to electromagnetic fields are not as well-known. The present study aims at investigating the effects of the electromagnetic fields on the health of the personnel exposed to this type of noxe. In order to evaluate the health state of the personnel exposed to the possible influences of the electromagnetic fileds generated within these stations on the homeostasy of the human body, a medical investigation protocol, including clinical, neuropsychological, functional investigations, laboratory exams of the biological products (blood, urine), has been devised for establishing the hematological and biochemical constants. The present study also determies the levels of the melatonin neurohormone synthesis and secretion through the ELISA method. This has also represented a major difficulty in establishing a harvesting protocol enabling us to register the variable, physiological concentrations of the hormone, its metabolism, respectively, as accurately as possible. The harvesting protocol is new and unique in this field. As it is difficult to be carried out at the site, the harvesting protocol has been apllied in the clinic, with the subjects admitted to the clinic. The protocol presupposes the harvesting of a urine spot for each urination over 48 hours. This procedure has allowed us to notice the circadian variations and the possible influence of the electromagnetic fileds due to the fact that some of the subjects that have been admitted during the two day perio of time have worked at least one shift. The results obtained and presented in this study are partially confirmed by other similar studies. In the course of time, the initial functional disorders of the melatonin circadian secretion rhythm have been followed by circulating concentration diminishing, and, after this, by the imbalance in the human body mechanisms protecting it against the free radicals. This effect could be compensated by increasing the intake of natural antioxidants such as food (vegetal) rich in carotenoids. Considering the experimental results obtained and corroborating them with the results at the international level, the research could be continued over a new period of time on the same subjects, in the same substations.