Occupational Exposure to Electromagnetic Fields-Different from General Public Exposure and Laboratory Studies

Abstract

Occupational Exposure to Electromagnetic Fields-Different from General Public Exposure and Laboratory Studies Hansson Mild K, Mattsson MO, Jeschke P, Israel M, Ivanova M, Shalamanova T. Occupational Exposure to Electromagnetic Fields-Different from General Public Exposure and Laboratory Studies. Int J Environ Res Public Health. 2023 Aug 9;20(16):6552. doi: 10.3390/ijerph20166552. Abstract The designs of in vivo, in vitro and in silico studies do not adequately reflect the characteristics of long-term occupational EMF exposure; the higher exposure levels permitted for employees are nevertheless extrapolated on this basis. Epidemiological studies consider occupational exposure only in a very general way, if at all. There is a lack of detailed descriptive data on long-term occupational exposure over the duration of the working life. Most studies reflect exposure characteristics of the general population, exposures which are long-term, but at a comparably low level. Occupational exposure is often intermittent with high peak power followed by periods with no exposure. Furthermore, the EU EMF-Directive 2013/35/EU states a demand for occupational health surveillance, the outcome of which would be of great help to epidemiologists studying the health effects of EMF exposure. This paper thus aims to outline and specify differences between public and occupational exposure and to increase the understanding of specific aspects of occupational exposure which are important for long-term health considerations. This could lead to a future protection concept against possible hazards based on adequate descriptions of long-term exposures and also include supplementary descriptive features such as a "reset time" of biological systems and accurate dose quantities. Conclusions Knowledge about the possible effects of EMF on occupational safety and health is primarily obtained from research on general public exposure conditions. Thus, experts on occupational safety and health in competent authorities may from time to time face relevant questions where answers are not based on a satisfactory knowledge fundament. The purpose of writing this article has been to provide arguments why science needs study designs which differentiate clearly between both the general public and the workers’ domain. To facilitate such a process, exposure patterns of both domains were introduced and evaluated, followed by physical and biological explanations referring to time-related exposure quantities for non-ionizing radiation protection. There are many observed, and potentially relevant, biological effects noted after exposures to both electric, magnetic and electromagnetic fields, where findings related to oxidative stress mechanisms have received particular attention [57,58]. Such findings have raised the awareness for time-related constants on the molecular and cellular levels of biological systems. However, it remains to be seen if biological effects on such a “micro” level will result in manifested health effects on a “macro” level organism. To monitor those health effects, workers need to be subjected to continuous health surveillance. And another question must be considered: which adequate genetic, blood, or, e.g., MRI or other diagnostic markers are most appropriate to be included in such a surveillance? To tackle the above research aspects and questions as well as to promote further research into EMF at the workplace, researchers need sufficient funding and international collaboration. What is required is a new research framework with an emphasis on occupational EMF exposure at the scale of the Horizon Europe projects to spark basic and applied research with a broad focus on frequency ranges and EMF sources, exposure characteristics, as well as interaction and repair mechanisms on micro-, meso-, and macro-levels. Let us get started. Open access paper: mdpi.com

AI evidence extraction

Main findings

The article argues that typical in vivo/in vitro/in silico study designs and many epidemiological studies do not adequately reflect long-term occupational EMF exposure patterns, which may involve intermittent high peaks and different time-related exposure characteristics than general public exposure. It highlights a lack of detailed descriptive data on long-term occupational exposure across working life and calls for improved study designs and occupational health surveillance (as referenced by EU EMF-Directive 2013/35/EU).

Outcomes measured

• occupational safety and health considerations
• biological effects (micro-level) including oxidative stress mechanisms
• potential manifested health effects (macro-level)
• need for occupational health surveillance and appropriate biomarkers/diagnostic markers

Limitations

• No specific frequency ranges, quantitative exposure metrics, or SAR values reported in the abstract
• No original epidemiologic effect estimates or health outcome results presented in the abstract (primarily conceptual/argumentative)
• Notes that it remains to be seen whether observed micro-level biological effects translate into manifested health effects

Suggested hubs

• occupational-exposure (0.95)
  Focuses on how occupational EMF exposure differs from general public exposure and calls for workplace-focused study designs and surveillance.
• who-icnirp (0.25)
  Discusses non-ionizing radiation protection concepts and permitted higher exposure levels for employees, but does not explicitly mention WHO/ICNIRP in the abstract.

{
    "study_type": "review",
    "exposure": {
        "band": null,
        "source": "occupational",
        "frequency_mhz": null,
        "sar_wkg": null,
        "duration": "long-term (working life); often intermittent with high peak power followed by periods with no exposure"
    },
    "population": "workers (occupational exposure) contrasted with general public exposure",
    "sample_size": null,
    "outcomes": [
        "occupational safety and health considerations",
        "biological effects (micro-level) including oxidative stress mechanisms",
        "potential manifested health effects (macro-level)",
        "need for occupational health surveillance and appropriate biomarkers/diagnostic markers"
    ],
    "main_findings": "The article argues that typical in vivo/in vitro/in silico study designs and many epidemiological studies do not adequately reflect long-term occupational EMF exposure patterns, which may involve intermittent high peaks and different time-related exposure characteristics than general public exposure. It highlights a lack of detailed descriptive data on long-term occupational exposure across working life and calls for improved study designs and occupational health surveillance (as referenced by EU EMF-Directive 2013/35/EU).",
    "effect_direction": "unclear",
    "limitations": [
        "No specific frequency ranges, quantitative exposure metrics, or SAR values reported in the abstract",
        "No original epidemiologic effect estimates or health outcome results presented in the abstract (primarily conceptual/argumentative)",
        "Notes that it remains to be seen whether observed micro-level biological effects translate into manifested health effects"
    ],
    "evidence_strength": "insufficient",
    "confidence": 0.7800000000000000266453525910037569701671600341796875,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "occupational exposure",
        "electromagnetic fields",
        "non-ionizing radiation",
        "exposure patterns",
        "intermittent exposure",
        "peak power",
        "EU EMF-Directive 2013/35/EU",
        "health surveillance",
        "oxidative stress",
        "dose quantities",
        "reset time"
    ],
    "suggested_hubs": [
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            "slug": "occupational-exposure",
            "weight": 0.9499999999999999555910790149937383830547332763671875,
            "reason": "Focuses on how occupational EMF exposure differs from general public exposure and calls for workplace-focused study designs and surveillance."
        },
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            "slug": "who-icnirp",
            "weight": 0.25,
            "reason": "Discusses non-ionizing radiation protection concepts and permitted higher exposure levels for employees, but does not explicitly mention WHO/ICNIRP in the abstract."
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    ]
}

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