EXPOSURE TO EXTREMELY LOW FREQUENCY ELECTROMAGNETIC FIELDS DURING LESSONS IN SECONDARY SCHOOLS
| Autor: | Keson Theppeang, Wasana Silangam, Amarin Kongtawelert, Pornpimol Kongtip, Witaya Yoosook |
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| Rok vydání: | 2017 |
| Předmět: |
Radiation
Future studies Schools Radiological and Ultrasound Technology Extremely low frequency electromagnetic fields Public Health Environmental and Occupational Health General Medicine Environmental Exposure Radiation Dosage Thailand 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Cross-Sectional Studies Electromagnetic Fields Adverse health effect Radiation Monitoring 030220 oncology & carcinogenesis Environmental health Environmental science Humans Radiology Nuclear Medicine and imaging Extremely low frequency Child |
| Zdroj: | Radiation protection dosimetry. 179(3) |
| ISSN: | 1742-3406 |
| Popis: | 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 (ELF-MFs) with a range of 5 Hz-32 kHz, and ELF-electric fields (ELF-EFs) with a range of 5 Hz-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. |
| Databáze: | OpenAIRE |
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