Title: Assessment of Radio Frequency Radiation Emitted by Mobile Phones during Call and Text Modes at Varying Distances
Authors: Matudi Peter Basho, Joel Aliya and Department of Physics
Volume: 9
Issue: 5
Pages: 104-108
Publication Date: 2025/05/28
Abstract:
This study aimed to measure the intensity of RF radiation emitted from a mobile phone during call and text modes at varying distances (2 cm, 5 cm, and 15 cm) from six sides of the device-front, back, top, bottom, left, and right. Using an Electromagnetic Radiation (EMR) meter, magnetic flux densities were recorded and converted into power densities (µW/m²). Results indicated that the highest radiation was emitted from the front of the phone in call mode at 2 cm (1.92 µW/m²), followed by text mode (1.17 µW/m²), with radiation levels decreasing substantially at greater distances. All recorded values were significantly below the International Commission on Non-Ionizing Radiation Protection (ICNIRP) safety limits of 4.5 W/m² and 9.0 W/m² for GSM 900 and 1800 MHz respectively. Although the findings suggest minimal risk of immediate biological harm, the potential for long-term thermal effects from frequent close-range usage underscores the need for precautionary measures. The study concludes by recommending increased public awareness, safe phone usage practices, and clearer consumer information on device-specific absorption rates to mitigate possible health implications.