Abstract

Overview

This study delves into the evaluation of Specific Absorption Rate (SAR) and E-field strength emerging from mobile phone radiation exposure on anatomically representative head models for adults and a 5-year-old child. Utilizing an advanced six-layered human head model composed of the brain, cerebrospinal fluid (CSF), dura, bone, fat, and skin, the analysis operates at the frequently used 1800 MHz frequency. Complex tissue dielectric properties were borrowed and adapted from prior researches, and computational modeling was facilitated by ANSYS HFSS to demonstrate the radiation exposure from a typical mobile phone’s dipole antenna.

Findings

• Children’s heads display a higher power absorption (SAR) due to their unique anatomical features, blaring caution on possible adverse physiological impacts.
• Marked disparities between adult and child head SAR highlights increased EM absorption in children, potentially elevating their risk for conditions like brain cancer.
• Visibility of excessive SAR values exceeding the standard guidelines set by bodies like IEEE, ICNIRP, and FCC, suggesting intense scrutiny and revision of existing RF exposure regulations.
• Connection between mobile phone use and an uptick in brain cancer incidence through data from national cancer registries in countries like the United States, Denmark, and Australia.
• Provides insights recommending the necessity of maintaining a safe distance from devices to mitigate heightened risks.
• The need for stringent evaluation of safety standards related to RF exposure from wireless devices close to or carried on the human body.

Conclusion

The results signify an urgent need to reevaluate and potentially tighten the safety and regulatory standards for permissible RF exposure, especially for vulnerable populations like children, to mitigate health risks attributed to electromagnetic fields.