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Document ID (ISN)56421
CIS number 91-1341
Year 1989
Convention or series no. OTA-BP-E-53
Author(s) Nair I., Morgan M.G., Florig H.K.
Congress of the United States, Office of Technology Assessment
Title Biological effects of power frequency electric and magnetic fields. Background paper
Bibliographic information US Government Printing Office, Washington, DC 20402-9325, USA, May 1989. v, 104p. Illus. 214 ref.
Abstract Although there is no significant transfer of energy from power-frequency fields to biological systems, some animal cells and tissues respond to such fields in the laboratory. Whole-animal and human experiments have examined 5 categories of effect: on mood or behaviour; on physiological variables such as growth or respiration; on specific biochemicals such as hormones that regulate physiological and psychological functions; on biological rhythms; on the epidemiology of cancer, especially leukaemia and brain cancer. The results are complex and inconclusive, but the epidemiological evidence is beginning to provide a basis for concern about risks from chronic exposure. If power-frequency fields do pose a health risk, high-voltage transmission lines will not be the only source of concern: distribution lines, wall wiring, appliances and lighting fixtures also produce such fields, and are much more common than transmission lines.
Descriptors (primary) electromagnetic radiation; electric fields; magnetic fields; biological effects; electric power transmission
Descriptors (secondary) report; epidemiologic study; animal experiments; carcinogenic effects; long-term exposure; neuropsychic effects; human experiments
Document type E - Books, reports, proceedings
Country / State or ProvinceUSA
Subject(s) Radiation
Broad subject area(s) Physical hazards
Browse category(ies) Electromagnetic fields
Electricity