Assessment of Radio Frequency Radiation from Smartphones: Implications for Human Health

Abstract

The thermal behavior of biological tissues and the radio frequency (RF) radiation emissions from well-known smartphone models are both examined in this work. The study of the thermal dynamics of human facial tissues is conducted using computational simulations and theoretical models, taking various characteristics such as density, specific heat capacity, and thermal diffusivity. The complex thermal dynamics are explained by the contour plots that illustrate the temperature differences throughout the face, which range from 37.0 to 39.277 degrees Celsius. Additionally, the study evaluates the specific absorption rate (SAR) values (W/kg) of radiofrequency radiation emissions from smartphones, such as the Samsung Galaxy S20, Google Pixel 5, OnePlus 8 Pro, Huawei P40 Pro, and Samsung Galaxy A series (A70, A71, A72, and A73). The Samsung Galaxy A series has the lowest SAR values, ranging from 1.20 to 1.26 W/kg, while the iPhone 12 has the highest SAR of 1.23 W/kg. When compared to other models, the iPhone 12 has higher sound output levels; the Samsung Galaxy A series has the lowest sound output levels. These results underline the significance of additional research into their possible health consequences by providing insights into the thermal dynamics in biological tissues as well as the exposure to radiofrequency radiation from cell phones.