Extremely Low Frequency Electromagnetic Exposure Assessment in Schools: A Statistical Analysis of Urban and Semi-Urban Areas

Authors: Y Kiouvrekis, A Alexias, V Softa, M Alkhorayef, A Sulieman, C Tyrakis, C Kappas

Year: 2021 May 28

Category: Electromagnetic Field Analysis

Journal: Radiat Prot Dosimetry

Institution: Radiat Prot Dosimetry

DOI: 10.1093/rpd/ncab076

URL: https://pubmed.ncbi.nlm.nih.gov/34047347

Abstract

Overview

The research conducted aims to accurately estimate the mean value of Extremely Low Frequency (ELF) exposures in schools across Greece. This study offers critical insights into the electromagnetic environment affecting school areas, specifically those situated in urban and semi-urban locations.

Methodology & Measurements

  • Analysis involved ELF measurements spanning from 1 Hz to 400 kHz, encompassing multiple phases.
  • Using the Weighted Peak Method (WPM), the study covered a broad frequency range, enhancing the reliability of findings.
  • Field tests were conducted extensively in 243 schools.

Findings

  • The average ELF Magnetic Fields (MFs) recorded were significantly below the International Commission on Non-Ionizing Radiation Protection (ICNIRP) standards.
  • Average exposure values stood at 0.21 μΤ, indicating minimal ELF exposure across the schools.
  • Detailed statistical breakdown reported specific values for urban and semi-urban areas, reflecting subtle variations.

Conclusion

This detailed examination underlines that the electromagnetic exposure in educational environments, either close to or removed from ELF sources, remains within secure limits. Nevertheless, the recognition of any statistically significant difference in EMF levels between different types of school environments reaffirms the need for ongoing monitoring and stringent adherence to safety guidelines.

ELF exposure schools urban and semi-urban magnetic fields statistical analysis
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