Document Type : Short Communication

Authors

1 Workplace Health Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran

2 M.Sc. in Occupational Health Engineering, Workplace Health Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran

3 Department of Occupational Health Engineering, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran

4 Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran

10.22038/jreh.2026.27478

Abstract

Background and Objective: Exposure to electromagnetic fields (EMFs) has attracted attention due to their potential health effects. The aim of this study was to examine the impact of exposure to static magnetic fields (SMFs) on workers’ sleep quality. 

Method and Material: A total of 185 participants were included in the study. Magnetic field exposure was measured using a specialized device, and sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI).

Results: The average static magnetic field was 22.65 millitesla (mT). Among participants, 46.48% reported poor sleep quality, while 53.52% reported good sleep quality. Results indicated that with each additional year of age, the likelihood of poor sleep quality increased by 0.32 units, and with each 1 millitesla increase in magnetic field exposure, the likelihood of poor sleep quality increased by 0.16 units. These findings suggest that even exposure to magnetic fields within permissible limits may lead to poor sleep quality, and as magnetic field exposure increases, the probability of poor sleep quality also rises. 

Conclution: This policy brief introduces and proposes policy options categorized into short-term, medium-term, and long-term priorities for managing occupational exposure to magnetic fields in the workplace. In the short term, emphasis is placed on educating and raising awareness among workers and managers, as well as continuous monitoring of magnetic field levels. At the medium-term level, expanding scientific research on the health effects of these fields and strengthening preventive measures such as consultation services and self-care practices are recommended. In the long term, collaboration between governmental and non-governmental organizations is emphasized to develop safety guidelines and improve working conditions.
 
Open Access Policy: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/

Keywords

  1. Occupational exposure to steady magnetic fields and its effect on workers blood indices at an electrolysis unit. Journal of magnetics. 2016;21(2):255-60.
  2. Rathebe P, Weyers C, Raphela F. Exposure levels of radiofrequency magnetic fields and static magnetic fields in 1.5 and 3.0 T MRI units. SN Applied Sciences. 2021;3(2):157.
  3. Bagheri Hosseinabadi M, Khanjani N, Norouzi P, Mirbadie SR, Fazli M, Mirzaii M. Oxidative stress associated with long term occupational exposure to extremely low frequency electric and magnetic fields. Work. 2021;68(2):379-86.
  4. Alizadeh S, Zendehdel R, Asadi S, Ranjbarian M, Mahmoodi Meymand M, Motevalian M, Hosseini A. Effect of extremely low frequency magnetic field on the quantity and structure of hemoglobin of employees in electricity industry. Pathobiology Research. 2018;22(1):1-5.
  5. El-Helaly M, Abu-Hashem E. Oxidative stress, melatonin level, and sleep insufficiency among electronic equipment repairers. Indian journal of occupational and environmental medicine. 2010;14(3):66-70.
  6. Monazzam MR, Hosseini M, Matin LF, Aghaei HA, Khosroabadi H, Hesami A. Sleep quality and general health status of employees exposed to extremely low frequency magnetic fields in a petrochemical complex. Journal of Environmental Health Science and Engineering. 2014;12:1-6.
  7. Bagheri Hosseinabadi M, Khanjani N, Ebrahimi MH, Haji B, Abdolahfard M. The effect of chronic exposure to extremely low-frequency electromagnetic fields on sleep quality, stress, depression and anxiety. Electromagnetic biology and medicine. 2019;38(1):96-101.
  8. Zhadin MN. Review of Russian literature on biological action of DC and low‐frequency AC magnetic fields. Bioelectromagnetics: Journal of the Bioelectromagnetics Society, The Society for Physical Regulation in Biology and Medicine, The European Bioelectromagnetics Association. 2001;22(1):27-45.
  9. De Vocht F, Batistatou E, Mölter A, Kromhout H, Schaap K, Van Tongeren M, et al. Transient health symptoms of MRI staff working with 1.5 and 3.0 Tesla scanners in the UK. European radiology. 2015;25:2718-26.
  10. Wilén J, De Vocht F. Health complaints among nurses working near MRI scanners—a descriptive pilot study. European journal of radiology. 2011;80(2):510-3.
  11. Zanotti G, Ligabue G, Gobba F. Subjective symptoms and their evolution in a small group of magnetic resonance imaging (MRI) operators recently engaged. Electromagnetic Biology and Medicine. 2015;34(3):262-4.
  12. Schaap K, Portengen L, Kromhout H. Exposure to MRI-related magnetic fields and vertigo in MRI workers. Occupational and Environmental Medicine. 2016;73(3):161-6.
  13. Erren T. A meta‐analysis of epidemiologic studies of electric and magnetic fields and breast cancer in women and men. Bioelectromagnetics: Journal of the Bioelectromagnetics Society, The Society for Physical Regulation in Biology and Medicine, The European Bioelectromagnetics Association. 2001;22(S5):S105-S19.
  14. Kheifets L, Monroe J, Vergara X, Mezei G, Afifi AA. Occupational electromagnetic fields and leukemia and brain cancer: an update to two meta-analyses. Journal of occupational and environmental medicine. 2008;50(6):677-88.
  15. Suri S, Dehghan SF, Sahlabadi AS, Ardakani SK, Moradi N, Rahmati M, Tehrani FR. Relationship between exposure to Extremely Low-Frequency (ELF) magnetic field and the level of some reproductive hormones among power plant workers. journal of Occupational Health. 2020;62(1):e12173.
  16. Mohler E, Frei P, Fröhlich J, Braun-Fahrländer C, Röösli M, QUALIFEX-team. Exposure to radiofrequency electromagnetic fields and sleep quality: a prospective cohort study. PloS one. 2012;7(5):e37455.
  17. Dean GE, Redeker NS, Wang Y-J, Rogers AE, Dickerson SS, Steinbrenner LM, Gooneratne NS, editors. Sleep, mood, and quality of life in patients receiving treatment for lung cancer. Oncology nursing forum; 2013.