Effects of Exposure to Extremely Low Frequency Electromagnetic Fields on Sleep Quality and Mental Well-Being Among Workers at a Tunisian Power Plant: A Cross-Sectional Analysis - Report - MDSpire
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Effects of Exposure to Extremely Low Frequency Electromagnetic Fields on Sleep Quality and Mental Well-Being Among Workers at a Tunisian Power Plant: A Cross-Sectional Analysis
Impact of ELF-EMF Exposure on Sleep and Mental Health in Tunisian Power Plant Workers
Overview
This cross-sectional study assessed the effects of occupational exposure to extremely low-frequency electromagnetic fields (ELF-EMFs) on sleep quality, depression, anxiety, and stress among Tunisian power plant workers. Results showed significantly higher rates of poor sleep quality, depression, anxiety, and stress in exposed workers compared to non-exposed controls, with ELF-EMF exposure independently associated with poor sleep and depression.
Background
Extremely low-frequency electromagnetic fields (ELF-EMFs) are non-ionizing radiations generated by electrical power production and distribution, to which power plant workers are particularly exposed. Prior research has linked ELF-EMFs to various health concerns including cancer and neuropsychological effects such as sleep disturbances, depression, and anxiety. However, evidence remains limited and sometimes controversial, especially regarding mental health outcomes in occupational settings. This study aimed to clarify the impact of chronic ELF-EMF exposure on sleep quality and mental well-being among workers at the Tunisian Electricity and Gas Company.
Data Highlights
Parameter
Exposed Group (EG)
Non-Exposed Group (NEG)
Participants (n)
77
88
Median ELF-EMF Exposure (μT)
5.86 (range 0.1–40.34)
Not applicable
Poor Sleep Quality (PSQI)
64.9%
29.5%
Depression (DASS-21)
24.7%
3.4%
Anxiety (DASS-21)
23.4%
0%
Stress (DASS-21)
46.8%
0%
Key Findings
Workers exposed to ELF-EMFs had a significantly higher prevalence of poor sleep quality (64.9%) compared to non-exposed workers (29.5%).
Depression was reported in 24.7% of exposed workers versus 3.4% in non-exposed controls.
Anxiety was present in 23.4% of the exposed group but absent in the non-exposed group.
Stress affected 46.8% of exposed workers, with no cases reported in the non-exposed group.
Multivariate analysis confirmed that ELF-EMF exposure was significantly associated with poor sleep quality and depression.
Clinical Implications
Clinicians should be aware that occupational exposure to ELF-EMFs may contribute to sleep disturbances and mental health disorders such as depression and anxiety among power plant workers. Regular mental health screening and interventions targeting sleep quality may be warranted for workers in high ELF-EMF environments. Further research is needed to elucidate the underlying mechanisms and to develop protective workplace policies.
Conclusion
This study provides evidence that chronic occupational exposure to ELF-EMFs adversely affects sleep quality and mental well-being among power plant workers. These findings underscore the importance of monitoring and mitigating ELF-EMF exposure to protect workers' mental health.
References
TEGC Study Team 2023 -- Effects of Exposure to Extremely Low Frequency Electromagnetic Fields on Sleep Quality and Mental Well-Being Among Workers at a Tunisian Power Plant
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