MICROWAVE EFFECT OF 0.9 GHz AND 1.8 GHz CW FREQUENCIES EXPOSED TO UNRESTRAINED SWISS ALBINO MICE

Long term radio frequency electromagnetic fleld (RF EMF) exposures due to Global System for Mobile communication (GSM) frequencies were investigated in this study. 158 Swiss Albino mice in unrestrained conditions were used as surrogate and divided into four groups. The average peak fleld strength generated and measured inside the cages placed at a far fleld from the antennas is 0:6 £ 10 i3 mW/cm 2 , and the speciflc absorption rate at 0.9GHz and 1.8GHz is 2:33 £ 10 i3 W/kg and 1:97 £ 10 i4 W/kg, respectively. Three samples of the mice chosen at random each from sham and exposed groups in week 4 and subsequently biweekly basis were taken for haematology and histopathology tests. The complete blood count result shows that haematological parameters of both the sham exposed and exposed mice were within the normal range of mice in the control group. A statistical analysis was conducted to determine whether difierences observed between the experimental groups were signiflcant. The histopathology examination on some internal organs shows that spleen and bone marrow of the mice were normal for all the three experimental groups, while a sign of tissue degeneration and in∞ammations were observed after 8 weeks of exposure on the brain,