Abstract

Overview

This study evaluates the total exposure to electromagnetic fields (EMF) due to signals within different mobile communication frequency bands in Nigeria. The research was conducted at 200 meters from the base of telecommunication masts in three major cities.

Methods

• Frequency Bands: GSM 900, GSM 1800, CDMA-1900, and 3G-2100.
• Measurement Tool: Calibrated hand-held spectrum analyser to measure power levels in dBm.

Findings

Measurements were taken in Lagos, Ibadan, and Abuja, with the following maximum electric field strengths recorded:

• Lagos: 0.83 V/m
• Ibadan: 0.53 V/m
• Abuja: 1.63 V/m

The exposure quotient from combined electric field strengths in each city significantly remains below the limits recommended by the International Commission on Non-Ionizing Radiation Protection.

Conclusion

The findings suggest that the exposure to EMF from multiple mobile communication frequency bands poses less risk than the safety threshold suggested internationally, however, continued monitoring and strict compliance to safety standards are essential to protect public health.