Publication: Exposure to extremely low frequency electromagnetic fields during lessons in secondary schools
Issued Date
2018-05-01
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ISSN
17423406
01448420
01448420
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2-s2.0-85047834132
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Mahidol University
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SCOPUS
Bibliographic Citation
Radiation Protection Dosimetry. Vol.179, No.3 (2018), 248-252
Suggested Citation
Wasana Silangam, Witaya Yoosook, Pornpimol Kongtip, Amarin Kongtawelert, Keson Theppeang Exposure to extremely low frequency electromagnetic fields during lessons in secondary schools. Radiation Protection Dosimetry. Vol.179, No.3 (2018), 248-252. doi:10.1093/rpd/ncx266 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/45913
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Exposure to extremely low frequency electromagnetic fields during lessons in secondary schools
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Abstract
© The Author(s) 2017. Published by Oxford University Press. All rights reserved. Schools are a significant location where children are exposed to electromagnetic fields (EMFs), which may cause adverse health effects. This cross-sectional study aimed to examine exposure levels to extremely low frequency magnetic fields (ELFMFs) with a range of 5Hz-32 kHz, and ELF-electric fields (ELF-EFs) with a range of 5Hz-2 kHz in secondary schools in Bangkok, Thailand. This study was conducted in 60 classrooms from three schools during class hours. Spot measurements were taken with a Narda EFA 300 field analyzer to evaluate exposure levels. This study showed that ELF-EMF exposure levels are lower than ICNIRP guidelines, while 21.67% of classrooms had a magnetic field strength above 0.2 μT, and the main sources of ELF-EMFs were electrical equipment and electrical wiring. Future studies should measure ELF-EMF levels in other areas and evaluate the effects of long term exposure to ELF-EMFs on children's health.