Extremely Low-Frequency Magnetic Fields Exposure Measurement during Lessons in Elementary Schools

Authors: JinKyung Park, EunHye Jeong, GyeongAe Seomun

Year: 2020 Jul 22

Category: Environmental Health

Journal: Int J Environ Res Public Health

DOI: 10.3390/ijerph17155284

URL: https://www.mdpi.com/1660-4601/17/15/5284

Abstract

Overview

Concerns about the potential health risks of electromagnetic fields (EMFs) are particularly relevant in educational settings. This study focuses on measuring extremely low-frequency magnetic fields (ELF-MFs) exposure levels in elementary schools during digital learning sessions.

Findings

  • Numeric measurements of ELF-MFs were recorded using an EMDEX II field analyzer in multiple classrooms.
  • Exposure levels were compared to International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines, finding that levels were generally compliant but varied across different schools and seating positions.
  • Most ELF-MFs exposure at student seating positions was linked to nearby electrical appliances and wiring, with levels decreasing with increasing distance from these sources.

Conclusion

While exposure to ELF-MFs was within established guidelines, the variability and potential health risks warrant careful classroom design to minimize exposure. Further research is recommended to explore the broader impacts of ELF-MFs exposure on children's health and to develop effective exposure reduction policies.

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