고압선로 전자파의 효율적 관리방안 연구

Abstract

Management strategies for Electromagnetic Fields in Electric Power lines Recent years have seen an unprecedented increase in the number and diversity of sources of electromagnetic fields. Technologies have brought into concerns about possible health risks from exposure to electromagnetic fields associated with their use. Such concerns have been raised about the safety of electric power lines. The primary purpose of this study is to review the laboratory and epidemiologic studies about the relationship between power lines and cancer rates, and to propose exposure guidelines for power-frequency fields. During the last 2 decades, a number of epidemiological studies have explored the association between childhood leukaemia and residential exposure to power-frequency electromagnetic fields. Several studies have suggested that there is a small excess leukaemia risk with magnetic field exposure above 0.2μT. The association was stongest for children under the age of 5 years. The U.S. National Institute of Environmental Health Sciences (NIEHS) reviewed studies that observed an association between chronic lymphoblasdtic leukaemia and occupational exposure, and rated exposure to power-frequency magnetic fields as "possibly carcinogenic to humans". A number of governmental and international organizations have developed exposure gudelines. Recently, the most rigid regulation with exposure levels for the elementary school and hospital has been enacted by Switzerland. Although there is no convincing supportive laboratory evidence, and the absence of a plausible biological mechanism of disease causation limits the evidence derived from epidemiological studies, because of health concerns by public, governments are increasingly called on to adopt precautionary approaches to regulating electromagnetic field exposures. Several policies which can be inferred from the results of this study are as follows: ？Establish safetydistance and guidelines on electric power lines for childhood ？Restrict schoolbuilding near electric power lines, and power line planning near schools and hospitals ？Reduce magnetic fields by regulating currenttime ？Hold a meeting between a resident and an electric power company under prudent avoidance policy ？In order to implement precautionary approaches, electromagnetic fields should not exceed the exposure limits of 0.2μT in the elementary schools, hospitals and residential environments. The Korean government would need to establish the above policies for electromagnetic fields and continually to be concerned about possible health risks from exposure to electromagnetic fields.