|Exposure duration||continuous for 3 h/day on 50 days (group 1) or 100 days (group 2)|
|Setup||two pairs of Helmholtz coils with a diameter of 25 cm and 255 turns of 1.0 mm insulated soft copper wire; coils 25 cm apart; one pair positioned horizontally and the other vertically; rats placed in 17 cm x 17 cm x 25 cm metacrylate boxes for exposure|
|Sham exposure||A sham exposure was conducted.|
Eosinophil, hemoglobin and mean platelet volume levels significantly decreased in rats exposed to the electromagnetic field for 50 days. Mean platelet volume levels were significantly lower in rats exposed for 100 days compared to the 50 day exposure group. There was no significant difference in any other paramter between the exposed and sham-exposed groups. Extremely low frequency electromagnetic field exposure had no effect neither on body weight nor on liver weight.
The data indicate that the applied electromagnetic field exposure may induce slight but statistically significant alterations in some hematological parameters of rats, within the physiological range.