Case report
Biological effects of electromagnetic fields of extremely low frequency
M. Hrnjak
; Institut za medicinu rada Zavoda za preventivnu medicinu Vojnomedicinske akademije, Beograd, Srbija
Z. Radojković
; Institut za medicinu rada Zavoda za preventivnu medicinu Vojnomedicinske akademije, Beograd, Srbija
Abstract
The strongest of the extremely low frequency (ELF) electromagnetic fields are those surrounding long-distance power lines, other high-voltage transmission lines and conductors in substations. These fields occur also near electrical distribution lines and in industry (from low-frequency induction furnaces, large electric motors, transformers, some welding and cutting electric arc processes, etc.). Exposure of the general population occurs from living in the vicinity of high-voltage transmission lines, in houses from electrical wiring configurations and from common household appliances. Subjective complaints and functional disturbances in the nervous, cardiovascular, haematopoetic and gastrointestinal systems of exposed workers have been reported in some countries. Results of studies of long-term exposure to electric and magnetic fields in other countries do not agree with these data. In general, adverse effects, specific symptoms or organic changes have not been observed. It is considered that exposure to electric fields up to 20 kV/m does not constitute a danger to health and that there is no need to limit exposure to fields below 10 kV/m.
Keywords
Hrčak ID:
152914
URI
Publication date:
10.10.1988.
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