Effect of ambient levels of power-line-frequency electric fields on a developing vertebrate
Journal Article
·
· Bioelectromagnetics (N.Y.); (United States)
Fertilized eggs of Gallus domesticus were exposed continuously during their 21-day incubation period to either 50- or 60-Hz sinusoidal electric fields at an average intensity of 10 Vrms/m. The exposure apparatus was housed in an environmental room maintained at 37 degrees C and 55-60% relative humidity (RH). Within 1.5 days after hatching, the chickens were removed from the apparatus and tested. The test consisted of examining the effect of 50- or 60-Hz electromagnetic fields at 15.9 Vrms/m and 73 nTrms (in a local geomagnetic field of 38 microT, 85 degrees N) on efflux of calcium ions from the chicken brain. For eggs exposed to 60-Hz electric fields during incubation, the chicken brains demonstrated a significant response to 50-Hz fields but not to 60-Hz fields, in agreement with the results from commercially incubated eggs. In contrast, the brains from chicks exposed during incubation to 50-Hz fields were not affected by either 50- or 60-Hz fields. These results demonstrate that exposure of a developing organism to ambient power-line-frequency electric fields at levels typically found inside buildings can alter the response of brain tissue to field-induced calcium-ion efflux. The physiological significance of this finding has yet to be established.
- Research Organization:
- Environmental Protection Agency, Research Triangle Park, NC (USA)
- OSTI ID:
- 6907976
- Journal Information:
- Bioelectromagnetics (N.Y.); (United States), Journal Name: Bioelectromagnetics (N.Y.); (United States) Vol. 9:2; ISSN BLCTD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560400* -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKALINE EARTH METALS
ANIMALS
BIOLOGICAL EFFECTS
BIRDS
BODY
BRAIN
CALCIUM
CENTRAL NERVOUS SYSTEM
CHICKENS
EGGS
ELECTROMAGNETIC FIELDS
ELEMENTS
FOWL
MEMBRANE TRANSPORT
METALS
NERVOUS SYSTEM
ORGANS
VERTEBRATES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKALINE EARTH METALS
ANIMALS
BIOLOGICAL EFFECTS
BIRDS
BODY
BRAIN
CALCIUM
CENTRAL NERVOUS SYSTEM
CHICKENS
EGGS
ELECTROMAGNETIC FIELDS
ELEMENTS
FOWL
MEMBRANE TRANSPORT
METALS
NERVOUS SYSTEM
ORGANS
VERTEBRATES