Results of lifespan exposure to continuous and intermittent extremely low frequency electromagnetic fields (ELFEMF) administered alone to Sprague Dawley rats.
Bua L, Tibaldi E, Falcioni L, Lauriola M, De Angelis L, Gnudi F, Manservigi M, Manservisi F, Manzoli I, Menghetti I, Montella R, Panzacchi S, Sgargi D, Strollo V, Vornoli A, Mandrioli D, Belpoggi F
rats (5 rats per cage) in polycarbonate cages (41 cm x 25 cm x 15 cm, white wood shavings as bedding) were placed in a toroidal exposure apparatus in a large room with a temperature of 22°C ± 3°C and a relative humidity of 40-60% with 12 h/daylight/dark; control and exposure groups were all in the same room in several independent toroids (ca. 500 rats per toroid possible)
a toroidal exposure apparatus was designed with 24 coils made of three turns of insulated copper cable, mounted on a superstructure of aluminum composed of two insulated parts; total copper cross section was 11 x 28 mm2; the large amount of a good thermal-conducting insulation prevented heating (ensuring room temperature); vibrations and noise were proved to be absent; a wooden structure was mounted inside the toroidal magnet for rat cages; the field lines were horizontal and parallel to the ground; the field uniformity was better than 10%; the current supply had a maximum harmonic distortion of 3%; the field rise time at power-up was at least 200 ms