Evaluation of the thermal effect of LTE 2600 MHZ (4G) electromagnetic field (EMF) exposure : thermographic study on rats

Exposure to LTE 2600 MHz microwaves is increasing very fast as new technologies and become accessible worldwide, and the smartphones being the main source of these waves. The aim of this study is to assess the thermal effect of 4G signals on rats. Forty adult Albino rats were used throughout the study, assigned as control and exposed groups, equally. Rats were kept in Plexiglas cages with intermittent exposure to LTE mobile-phone-like signals at an average of 2h/day for up to 30 continuous days with SAR value of 0.982 W/kg. Infrared images were snapped immediately after the end of the exposure time, then one hour, two hours, and four hours later at a rate of one collection/week during the study. IR images were analyzed by FLIR Tools software. The results exhibited variation in reflected skin temperatures in the exposed group compared to control images. Furthermore, the analysis of collected data revealed significant variations over the course of the study compared to the first week. The rise in skin temperature observed in response to exposure in the first week, which decreased gradually increased exposure and this drop in reflected skin temperature was significantly related to amount of exposure. The study concludes that the LTE 2600 MHz exposure under controlled laboratory conditions has a thermal effect on the rats. يزداد التعرض لموجات المايكروويف ذي التردد LTE 2600 ميجاهرتز بسرعة كبيرة مع زيادة استخدام التقنيات الجديدة المنتشرة عالميا، و تعد الهواتف الذكية هي المصدر الرئيسي لهذه الموجات. تهدف هذه الدراسـة إلى تقييم التأثير الحراري لإشـارات G4 على الجرذان. تم استخدام أربعين جرذا بالغا من نوع الأبيض (الألبينو) طوال الدراسة، تم تقسيمها إلى مجموعات السيطرة والتعريض. تم وضع الجرذان في أقفاص بلاستيكية خاصة أثناء التعرض المتقطع للإشارات الميكروية المشابهة لإشارات الهاتف المحمول بمتوسط 2 ساعة / يوم لمدة تصل إلى 30 يوما متواصلا بمعدل امتصاص للأشعة بقيمة 0.982 واط / كجم. تم التقاط صور الحرارية مباشرة بعد نهاية وقت التعرض، ثم بعد