Study type: Medical/biological study (observational study)

The rate of elimination of chromosomal aberrations after accidental exposure to microwave radiation med./bio.

Published in: Bioelectrochem Bioenerg 1993; 30: 319-325

Aim of study (acc. to author)

The study presents cytogenetic examinations carried out in subjects accidentally exposed to microwave radiation. Structural changes were followed up over the course of 30 weeks after the "accident" to demonstrate the persistence of such changes after acute exposure.



Exposure Parameters
Exposure 1: 1.25–1.35 GHz
Modulation type: pulsed
Exposure duration: repeated daily exposure, 12 h/day every other day, for 12-20 (16 ± 2.4) years

Exposure 1

Main characteristics
Frequency 1.25–1.35 GHz
Exposure duration repeated daily exposure, 12 h/day every other day, for 12-20 (16 ± 2.4) years
Modulation type pulsed
Exposure setup
Exposure source
  • air traffic control radar
Setup occupational exposure at different workplaces
Measurand Value Type Method Mass Remarks
power 100 kW peak value - - -
power density 20 mW/cm² maximum measured - -
power density 10 µW/cm² minimum measured - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

Results of chromosome aberration analysis of subjects before the accident showed only acentric fragments, chromatid and chromosome breaks which did not exceed 0.5-2.5%. All subjects showed a significantly increased number of chromosome aberrations. The total number of aberrations for the "accidentally" exposed group ranges from 3% to 33%, with the existence of a great number of unstable aberrations such as dicentrics and ring chromosomes. The results show a decrease in the total of chromosomal aberrations 30 days after the first sampling (dicentric and ring chromosomes are still present).

Study character:

Study funded by

Related articles