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Title: Introduction to extremely-low-frequency electric and magnetic fields

The interaction with living systems of electromagnetic fields in the extremely-low-frequency (ELF) range below 300 Hz will be summarized briefly in this paper. In materials with the electrical and magnetic properties of living tissues, these fields have a long wavelength (5000 m) and skin depth (150 m). As a consequence, in their interactions with humans and other living organisms ELF fields behave as though they are composed of independent electric and magnetic components of an ELF field is commonly referred to as the quasi-static approximation,'' which permits the radiating properties of the field to be neglected in describing its interaction with living organisms. The electric and magnetic components of an ELF field have several distinctly different features in their interactions with humans and other living organisms. First, the electrical conductivity of tissue is approximately 14 to 15 orders of magnitude greater than that of air at ELF electric fields. Consequently, the body behaves like a good electrical conductor in ELF electric fields. As a result, an electrical charge is developed on the surface of a living object in an external ELF field, but the electric field penetrates into the body only to a very limited extent.
Authors:
Publication Date:
OSTI Identifier:
5465110
Report Number(s):
PNL-SA-17179; CONF-8907166--1
ON: DE90002662
DOE Contract Number:
AC06-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: 8. annual American Statistical Association conference on radiation and health: health effects of electric and magnetic fields: statistical support for research strategies, Cooper Mountain, CO (USA), 9-13 Jul 1989
Research Org:
Pacific Northwest Lab., Richland, WA (USA)
Sponsoring Org:
DOE/NE
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CURRENTS; INDUCTION; ELECTROMAGNETIC FIELDS; BIOLOGICAL EFFECTS; BIOCHEMICAL REACTION KINETICS; LONG WAVE RADIATION; TISSUES; BODY; ELECTROMAGNETIC RADIATION; KINETICS; RADIATIONS; RADIOWAVE RADIATION; REACTION KINETICS 560400* -- Other Environmental Pollutant Effects