Study type: Medical/biological study (experimental study)

Cytogenetic investigations on microwaves emitted by a 455.7 MHz car phone. med./bio.

Published in: Folia Biol (Praha) 2000; 46 (5): 175-180

Aim of study (acc. to author)

To investigate possible cytogenetic effects on human lymphocytes in vitro caused by exposure to 455.7 MHz microwaves.

Background/further details

After microwave exposure the cells were treated with mitomycin C, and x-ray exposure respectively.



Exposure Parameters
Exposure 1: 455.7 MHz
Exposure duration: continuous for 2 h

Exposure 1

Main characteristics
Frequency 455.7 MHz
Exposure duration continuous for 2 h
Exposure setup
Exposure source
Distance between exposed object and exposure source 5 cm
Setup Blood samples were placed in a cooled box at 17 ± 1 °C at 5 cm from the antenna of an analogue car phone.
Additional info The following kinds of exposure were investigated: MW or MMC or X-ray exposure alone, MW exposure followed by MMC, and MW exposure followed by X-rays. MW and X-ray (5 doses) exposures preceded cell cultivation. MMC (2 doses) was present during all 72 h of cell cultivation. Control samples were kept in the same conditions of temperature and humidity as the exposed ones. X-ray exposed blood samples were irradiated at room temperature with doses of 5, 10, 20, 30 or 100 cGy at a dose rate of 1 Gy/min.
Measurand Value Type Method Mass Remarks
electric field strength 50 V/m - measured - -
SAR 6.5 W/kg - calculated - -

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

In the present investigation it was not possible to demonstrate any effect of 455.7 MHz electromagnetic fields on the genetic material of white blood cells in vitro. The data do not support the hypothesis that radiofrequency fields act synergistically with chemical (in this case Mitomycin C) or physical (e.g. X-rays) mutagens.

Study character:

Study funded by

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