Biological Effects of Power Frequency Electric and Magnetic Fields. Background Paper

摘要

Electric and magnetic fields produced by electric power systems have recently been added to the list of environmental agents that are a potential threat to public health. The paper describes exposures to fields from power systems and other sources, reviews existing scientific evidence on the biological effects of these fields, presents a history of research support and of regulatory activity, and discusses problems and alternatives in regulatory action. If exposure to fields does turn out to pose a health risk, it is unlikely that high voltage transmission lines will be the only sources of concern. Power-frequency fields are also produced by distribution lines, wall wiring, appliances, and lighting fixtures. These non-transmission sources are much more common than transmission lines and could play a far greater role than transmission lines in any public health problem.