Study type: Medical/biological study (experimental study)

Biological effects of long-term exposure of rats to 970-MHz radiofrequency radiation med./bio.

Published in: Bioelectromagnetics 1981; 2 (3): 279-284

Aim of study (acc. to author)

To determine the effects of long-term radiofrequency exposure on the blood and blood cells of rats.



Exposure Parameters
Exposure 1: 970 MHz
Exposure duration: 22 h/day for 70 consecutive days

General information

for further information on the setup see: Weil CM., 1980, "Circularly polarized waveguide system for chronic exposure of rats at 970 MHz." Bioelectromagnetics 1: 249 Guy AW., Chou CK., 1975, "System for quantitative chronic exposure of a population of rodents to UHF fields." In Johnson CC., Shore ML., (eds.) "Biological effects of electromagnetic waves" (Selected Papers of the USNC/URSI Annual Meeting) Boulder, CO; DHEW Publication (FDA)77-8011, NTIS, Vol. 2, pp 389-410

Exposure 1

Main characteristics
Frequency 970 MHz
  • circular
Exposure duration 22 h/day for 70 consecutive days
Exposure setup
Exposure source
Sham exposure A sham exposure was conducted.
Measurand Value Type Method Mass Remarks
power density 7.8 mW/cm² spatial average calculated - -
power density 25 mW/cm² effective value calculated - -
SAR 2.5 mW/g average over mass calculated whole body +/- 0.3 mW/g

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

A broad range of blood serum components and blood cell types were determined. Significantly higher serum levels of triglycerides, albumine, and total protein were found in irradiated animals compared to sham-irradiated controls. These findings are difficult to explain and maybe suggest a nonspecific stress reaction.

Study character:

Study funded by

Related articles