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Exposure limits of Magnetic fields of High Voltage Transmission lines for Evaluation of Environmental Impact  

Jeon, In-Soo (Korea Environment Institute)
Publication Information
Journal of Environmental Impact Assessment / v.13, no.5, 2004 , pp. 243-250 More about this Journal
Abstract
Recently, concerns about health risks exposed to electromagnetic fields have been brought in the safety of electric power lines. A number of governmental and international organizations have advised to avoid the magnetic field exposure to the schools and residential areas. Some epidemiologic studies showed that electromagnetic fields should not exceed the exposure limits of 2-3mG to the people living near high-voltage transmission lines. In this study, the principles, ranges and survey methods of the assessment for powerfrequency electromagnetic fields were reviewed from the relevant research papers and documents. The ranges of electromagnetic fields were determined from 50m to 100m and have been defined according to the properties of each electric power lines and a new methodology was suggested in this study. It would be necessary to develop and improve specific assessment methods for various high-voltage transmission lines projects.
Keywords
health risks; electric power lines; power-frequency electromagnetic fields; exposure; assessment methods;
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