RF Safe

[A methodological approach to studying the values of 50-Hz electromagnetic fields that influence the workers of power enterprises].

Gigiena i sanitariia · 2009 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 4935

The study measured the electric and magnetic components of 50-Hz EMF in power enterprise workplaces, adjacent to 500- and 110-kV substation grounding systems, and in workers' residential flats, and calculated permissible cumulative daily exposure. It reports …

Study snapshot

PublicationGigiena i sanitariia · 2009
Study typeexposure_assessment
Reported directionUnclear
Evidence ratingInsufficient

Abstract

The necessity of studying the impact of electromagnetic fields (EMF) on the health status of the operation staff from power enterprises has stemmed from the improper prior significance being attached to this matter. The subjects of the investigations were operators' premises, work environment system, and operation staff. The intensity of the electrical and magnetic constituents of a 50-Hz EMF in the operation staff's workplaces, in the areas adjacent to 500- and 110-kVsubstation grounding systems, and in the flats of the approximate apartment houses where the workers lived was measured. Then their permissible cumulative daily exposure was calculated. Working arrangement was also assessed. The examinees' behavior was predicted in stress situations. This permitted a scientific rationale to be provided for protective measures against exposure to electromagnetic irradiations in productive and nonproductive conditions.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeexposure_assessment
Effect directionunclear
PopulationOperation staff/workers of power enterprises; measurements also in nearby residential flats
Sample sizeNot supplied
ExposureELF · 0.05 MHz · cumulative daily exposure (calculated)
Evidence strengthInsufficientConfidence: 66% · Peer reviewed: yes

Main findings

The study measured the electric and magnetic components of 50-Hz EMF in power enterprise workplaces, adjacent to 500- and 110-kV substation grounding systems, and in workers' residential flats, and calculated permissible cumulative daily exposure. It reports that these assessments were used to provide a scientific rationale for protective measures against EMF exposure.

Outcomes measured

  • Measured electric field intensity (50 Hz)
  • Measured magnetic field intensity (50 Hz)
  • Calculated permissible cumulative daily exposure
  • Assessment of working arrangement
  • Predicted behavior in stress situations
  • Rationale for protective measures against EMF exposure in productive and nonproductive conditions

Limitations

  • No health outcomes or quantitative exposure results are reported in the abstract.
  • Sample size and participant selection are not described.
  • Methods for calculating permissible cumulative daily exposure are not detailed in the abstract.
View raw extracted JSON
{
  "study_type": "exposure_assessment",
  "exposure": {
    "band": "ELF",
    "source": "occupational",
    "frequency_mhz": 0.05,
    "sar_wkg": null,
    "duration": "cumulative daily exposure (calculated)"
  },
  "population": "Operation staff/workers of power enterprises; measurements also in nearby residential flats",
  "sample_size": null,
  "outcomes": [
    "Measured electric field intensity (50 Hz)",
    "Measured magnetic field intensity (50 Hz)",
    "Calculated permissible cumulative daily exposure",
    "Assessment of working arrangement",
    "Predicted behavior in stress situations",
    "Rationale for protective measures against EMF exposure in productive and nonproductive conditions"
  ],
  "main_findings": "The study measured the electric and magnetic components of 50-Hz EMF in power enterprise workplaces, adjacent to 500- and 110-kV substation grounding systems, and in workers' residential flats, and calculated permissible cumulative daily exposure. It reports that these assessments were used to provide a scientific rationale for protective measures against EMF exposure.",
  "effect_direction": "unclear",
  "limitations": [
    "No health outcomes or quantitative exposure results are reported in the abstract.",
    "Sample size and participant selection are not described.",
    "Methods for calculating permissible cumulative daily exposure are not detailed in the abstract."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "50 Hz",
    "ELF",
    "occupational exposure",
    "power enterprises",
    "substation",
    "grounding systems",
    "electric field",
    "magnetic field",
    "exposure assessment",
    "protective measures"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.9,
      "reason": "Focuses on EMF exposure assessment in operation staff/workplaces of power enterprises and near substations."
    }
  ]
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: Not supplied
PubMed: 20050069

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