Study type: Medical/biological study (experimental study)

Lack of mutagenic effects on conidia of Aspergillus amstelodami irradiated by 8.7175 GHz CW microwaves med./bio.

By: Dhahi SJ, Habash RW, Al-Hafid HT
Published in: J Microw Power 1982; 17 (4): 345-351
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Aim of study (acc. to author)

An attempt to induce genetic effects in conidia (spores) of the fungus Aspergillus amstelodami by 8.7175-GHz CW microwaves.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 8.7175 GHz
Exposure duration: 3 h, 6 h

Exposure 1

Main characteristics
Frequency 8.7175 GHz
Type
Charakteristic
Exposure duration 3 h, 6 h
Exposure setup
Exposure source
Distance between exposed object and exposure source 0.008 m
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
power density 2.09 mW/cm² - estimated - -

Reference articles

  • Livingston G et al. (1979): Comparative effects of water-bath- and microwave-induced hyperthermia on survival of Chinese hamster ovary (CHO) cells

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

The data demonstrate a lack of mutagenic effects of 8.7175 GHz microwaves on conidia of Aspergillus amstelodami . Exposure duration seems to have no effect on the outcome. A temperature rise between 2.2 and 2.4°C induced in the suspension by the 3 h and 6 h exposure seems to have little, if any, effect on the frequency of mutants.

Study character:

Study funded by