Abstand zw. exponiertem Objekt und Expositionsquelle
3 mm
Kammer
Each mouse was placed in an aluminium box that was covered inside with RF absorber (< -21.8 dB at 1.5 GHz) except for the roof and the front door. The front door was a new type of transparent (20 dB) absorber. Forty-eight exposure boxes were used (24 for EMF and 24 for sham exposure).
Aufbau
The EMF was directed at the mouse skin by an electrically short monopole antenna with capacitive loading, implemented using a circular metal plate (7 mm diameter, 1 mm thick) attached to the tip of a 1/8-wavelength monopole element, and producing highly localized peak SARs. The roof of the box acted as the ground for the antenna. The mouse was held in a ventilated plastic cylinder with a slit at the top allowing a distance of only 3 mm between skin and antenna.
Zusatzinfo
One week after being subjected to topical application of DMBA on pre-shaved dorsal skin the mice were divided into four groups, receiving EMF exposure, sham exposure, weekly topical applications of TPA as positive control and no treatment as carcinogen control.
Imaida K et al.
(1998):
Lack of promoting effects of the electromagnetic near-field used for cellular phones (929.2 MHz) on rat liver carcinogenesis in a medium-term liver bioassay
Die Ergebnisse zeigten, dass eine Nahfeld-Exposition in einem elektromagnetischen 1.5 GHz-Feld, wie es bei Handys genutz wird, keine erhöhte Wirkung ausübt auf die Haut-Tumorentwicklung, die durch DMBA ausgelöst wird.
Association of Radio Industries and Businesses (ARIB), Japan
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