Effects of Exposure to a 50 Hz Magnetic Field on Melatonin in Rats
There has been increasing concern over possible human health risks associated with exposure to alternating current (AC) magnetic fields induced by transmission and distribution systems. To accurately assess the possible health risk, it is necessary to conduct a wide range of studies with appropriate exposure systems both for animal and human subjects. Because AC transmission lines are three phase, the magnetic field at ground level tends to be elliptically polarized (Deno, 1976) and is represented fairly well by a rotating vector. In the laboratory, this rotating vector can be simulated by the sum of horizontal and vertical magnetic fields 90° out of phase. It is very important to allow the simultaneous exposure of as many animals as possible. An exposure facility must be designed to fill these requirements.
KeywordsMagnetic Field Exposure System Pineal Gland Magnetic Field Effect Melatonin Concentration
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