Study type: Medical/biological study (experimental study)

The effects of cell phone waves (900 MHz-GSM band) on sperm parameters and total antioxidant capacity in rats. med./bio.

Published in: Int J Fertil Steril 2013; 7 (1): 21-28

Aim of study (acc. to author)

To investigate the effects of microwaves emitted by cell phones on sperms and total antioxidant capacity in rats.

Background/further details

Four groups were examined (n=7 per group): 1.) control group, 2.) exposure to 915 MHz-microwaves for 14 days, 3.) exposure to 915 MHz-microwaves for 21 days and 4.) exposure to 950 MHz-microwaves for 14 days.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 915 MHz
Modulation type: AM, pulsed
Exposure duration: 8 hours a day for 14 consecutive days
Exposure 2: 915 MHz
Modulation type: AM, pulsed
Exposure duration: 8 hours a day for 21 consecutive days
Exposure 3: 950 MHz
Modulation type: AM, pulsed
Exposure duration: 8 hours a day for 14 consecutive days

General information

1.) 915 MHz for 14 days 2.) 915 MHz for 21 days 3.) 950 MHz for 14 days

Exposure 1

Main characteristics
Frequency 915 MHz
Type
Exposure duration 8 hours a day for 14 consecutive days
Additional info simulated cell phone receiver waves
Modulation
Modulation type AM, pulsed
Modulation frequency 200 kHz
Repetition frequency 217 Hz
Exposure setup
Exposure source
  • monopole
Chamber rats were exposed in a Plexiglas cylinder that consisted of an internal (radius 5 cm, height 30 cm) and an external (radius 15 cm, height 30 cm) cylinder, rats were placed in the space between the two cylinders, antenna was placed vertically in the internal cylinder
Additional info distance between measurement device and exposed object: 5, 10 or 15 cm
Parameters
Measurand Value Type Method Mass Remarks
power density 1.6 mW/cm² mean measured - -

Exposure 2

Main characteristics
Frequency 915 MHz
Type
Exposure duration 8 hours a day for 21 consecutive days
Additional info simulated cell phone receiver waves
Modulation
Modulation type AM, pulsed
Modulation frequency 200 kHz
Repetition frequency 217 Hz
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
power density 1.6 mW/cm² mean measured - -

Exposure 3

Main characteristics
Frequency 950 MHz
Type
Exposure duration 8 hours a day for 14 consecutive days
Additional info simulated cell phone antenna waves
Modulation
Modulation type AM, pulsed
Modulation frequency 200 kHz
Repetition frequency 217 Hz
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
power density 1.6 mW/cm² mean measured - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

No differences were found between the groups regarding the number and morphology of sperms. The sperm viability, the sperm motility and the sperm antioxidative capacity were significantly decreased in all exposure groups (group 2, 3 and 4) compared to the control group. Furthermore, in group 3 (exposure for 21 days) the sperm viability and the sperm motility were additionally significantly decreased compared to group 2 (exposure for 14 days).
(remark EMF-Portal: No results are presented for antioxidative capacity in the blood plasma.)
The authors conclude that exposure to microwaves emitted by cell phones could decrease the sperm viability, sperm motility and sperm antioxidative capacity in rats.

Study character:

Study funded by

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