IMCC Journal of Science

The Official Peer-Reviewed Journal of Iligan Medical Center College
ISSN Print: 2783-0357 | ISSN Online: 2783-0365

Assessment of Radiofrequency Radiation Level in the
Near Field of Selected Mobile Phones in
Katsina State, Nigeria

Ikechiamaka Florence Nwamaka, Owolabi Joshua Adeyemi, 
Ekundayo Kehinde Rasaq


With the rapid advances in mobile communication technology, increase in mobile standards, and the consequent multiple applications of mobile phones in different fields, a higher risk of human exposure to radiofrequency (RF) radiation from the use of mobile phones is speculated. The study focused on the assessment of radiofrequency radiation levels in the near field of common mobile phones of different sizes used in Dutsin-Ma, Katsina State, Nigeria. Real-time measurements of power densities of 50 mobile phones of different sizes, types, and models at varying distances were done in isolated locations using a Cornet Electrosmog RF Meter. The power density was measured when each phone was in standby mode and when dialed at an interval of 10 cm between the RF meter and phone up to a maximum distance of 50 cm. The average power densities of investigated phones, in dialed mode, which range from 0.799 ± 0.11 mW/m2 to 182.700 ± 10.91 mW/m2, are below the reference level of exposure safety limit set by the International Commission on Non-Ionizing Radiation Protection for the general public. The RF radiation of the phones was found to be independent of the size of the phone. The data presented in this study can be used to promote user awareness, safety considerations, and informed decision-making regarding the safe usage of mobile devices. As long as a mobile phone is operated in the near field region, its power density does not necessarily decrease with distance.

Keywords: mobile phone; near field; power density; radiation; radio frequency


Web Statistics