Studientyp:
Medizinische/biologische Studie
(experimentelle Studie)
Chronic exposure to a GSM-like signal (mobile phone) does not stimulate the development of DMBA-induced mammary tumors in rats: results of three consecutive studies
med./bio.
[Chronische Exposition bei einem GSM-ähnlichen Signal (Handy) stimuliert nicht die Entwicklung von DMBA-induzierten Mammatumoren bei Ratten: Ergebnisse dreier aufeinanderfolgender Studien]
Von:
Bartsch H, Bartsch C, Seebald E, Deerberg F, Dietz K, Vollrath L, Mecke D
Veröffentlicht in: Radiat Res 2002; 157 (2): 183-190
Abstand zw. exponiertem Objekt und Expositionsquelle
130 cm
Kammer
The animals in the RF-field-exposed and sham-exposed groups were kept in identical chambers. The five chambers used for sham and RF exposure, respectively, were placed in two separate air-conditioned, adjacent rooms of the same dimensions. Exposure chambers (90 x 90 x 187 cm) were made from sheet steel and had a lining of absorbing material on the walls and the bottom. Each chamber contained in its bottom part a Plexiglas cage of 0.4 m² x 20 cm equipped with three stainless steel nipples for drinking and covered by a perforated Plexiglas lid. The top as well as the lower front and back sides of the chamber underneath the animal cage were kept open for ventilation but covered with wire netting to suppress leakage of the EMF.
Aufbau
Within the exposure chamber, the animal cage was located in the far field of a flat spiral antenna which was at a distance of 130 cm from the bottom of the cage and emitted a clockwise circularly polarized RF signal.
Zusatzinfo
Exposure was interrupted once daily for about 10 to 20 min for feeding and inspection of animals, 3 to 4 h once weekly for tumour palpation, 1 to 2 h three times weekly for cleaning of cages, and 4 to 5 h once per month for servicing the exposure devices.
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