ASSESSMENT OF ELECTROMAGNETIC WAVES EMISSION IN SELECTED BUILDINGS AT THE FEDERAL UNIVERSITY OF TECHNOLOGY, AKURE: IMPLICATIONS FOR OCCUPATIONAL HEALTH AND RADIO FREQUENCY EXPOSURE

• C. N. Udekwe

  Department of Information and Communication Engineering, Federal University of Technology, Akure, Ondo State, Nigeria

• A. O. Dahunsi

  Department of Computer Engineering, Federal University of Technology, Akure, Ondo State, Nigeria

• A. A. Ponnle

  Department of Electrical and Electronics Engineering, Federal University of Technology, Akure, Ondo State, Nigeria

• F. M. Dahunsi

  Department of Computer Engineering, Federal University of Technology, Akure, Ondo State, Nigeria

• K. B. Adedeji

  Department of Electrical and Electronics Engineering, Federal University of Technology, Akure, Ondo State, Nigeria

This study presents a spatial assessment of electromagnetic field (EMF) and radio frequency (RF) emissions in three faculty buildings which are SEMS, Old SET, and New SET, at the Federal University of Technology, Akure (FUTA), Nigeria. The research aims to quantify indoor EMF exposure levels and assess their implications for occupational health and radio frequency safety. Using a TriField TF2 meter, over 90 measurement points were surveyed across multiple floors under both load and no-load conditions. Electric field strengths were recorded up to 400?V/m (standard) and 350?V/m (weighted), while magnetic fields peaked at 0.9?mG (standard) and 0.8?mG (weighted). RF power densities ranged from 0.9?mW/m² to a maximum of 1.8?mW/m². Spatial variations revealed that hotspots occurred near sockets, routers, and electronic clusters, particularly in high-occupancy zones and along building perimeters. Contour plots generated via MATLAB provided visual insights into field propagation, identifying elevated exposures in biologically sensitive weighted readings, which were often underestimated by standard measurements. Although most values remained within ICNIRP and WHO exposure limits, several zones indicated potential long-term exposure risks. Consequently, strategic recommendations were proposed, including the repositioning of wireless access points, establishment of low-EMF zones, proper cable shielding, device usage awareness, and routine EMF audits. These findings underscore the need for proactive EMF management in academic environments to ensure safe learning and working conditions, and they establish a framework for future longitudinal monitoring of EMF exposure on university campuses.

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