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Measurement Of Neuromagnetic Brain Function In Pre-school Children With Custom Sized MEG
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Extremely Low-Frequency Magnetic Fields Exposure Measurement during Lessons in Elementary Schools
JinKyung Park1, EunHye Jeong1, GyeongAe Seomun1
1College of Nursing, Korea University, Seoul 02841, Korea.
Summary
Children
Area of Science:
- Environmental Health
- Pediatric Health
- Electromagnetic Field Exposure
Background:
- Schools are significant environments for children's exposure to electromagnetic fields.
- Extremely low-frequency magnetic fields (ELF-MFs) may pose risks to children's health.
- Digital learning increases reliance on electronic devices in classrooms.
Purpose of the Study:
- To measure and analyze extremely low-frequency magnetic fields (ELF-MFs) exposure levels for elementary school students during digital learning.
- To identify sources and variations in ELF-MFs exposure within classrooms.
- To inform strategies for minimizing student exposure in school environments.
Main Methods:
- Conducted ELF-MFs measurements in five classrooms across four elementary schools using an EMDEX II field analyzer.
- Quantified ELF-MFs levels at individual student seating positions.
- Correlated exposure levels with proximity to electrical appliances, wiring, and distribution boxes.
Main Results:
- Measured ELF-MFs exposure levels were below International Commission on Non-Ionizing Radiation Protection guidelines.
- Significant variations in ELF-MFs exposure were observed between schools and seating positions.
- Proximity to electrical sources was the primary determinant of exposure, with levels decreasing with distance.
Conclusions:
- While below guideline limits, spatial variations in ELF-MFs exposure exist within classrooms.
- Designing school environments with consideration for seating arrangements can mitigate potential exposure.
- Further research is needed on ELF-MFs effects and broader environmental measurements during school hours.
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