Measuring Occupational Exposure to Extremely Low-Frequency Electric Fields at 220 kV Substations

2017 · Unclear · Low evidence

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UnclearLow evidencePaper 1342

In measurements conducted at two old 220 kV substations in Finland, the higher action level (AL) of 20 kV m-1 was exceeded at both substations.

Study snapshot

Publicationmanual · 2017

Study typeexposure_assessment

Reported directionUnclear

Evidence ratingLow

Abstract

Measuring Occupational Exposure to Extremely Low-Frequency Electric Fields at 220 kV Substations Pirkkalainen H, Heiskanen T, Tonteri J, Elovaara J, Mika P, Korpinen L.Measuring Occupational Exposure to Extremely Low-Frequency Electric Fields at 220 kV Substations. Radiat Prot Dosimetry. 2017 Mar 3:1-4. doi: 10.1093/rpd/ncx023. Abstract Earlier studies conducted at 400 and 110 kV substations in Finland have shown that the occupational exposure to electric fields can exceed the action levels (ALs) set by Directive 2013/35/EU. This is a case study investigating the level of occupational exposure experienced by workers at 220 kV substations in order to determine if the actions levels are being exceeded. The measurements were conducted at two old 220 kV substations in Finland. The higher AL of 20 kV m-1 was exceeded at both substations. ncbi.nlm.nih.gov

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

PopulationWorkers at 220 kV substations in Finland

Sample sizeNot supplied

ExposureELF

Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

In measurements conducted at two old 220 kV substations in Finland, the higher action level (AL) of 20 kV m-1 was exceeded at both substations.

Outcomes measured

Extremely low-frequency electric field levels at 220 kV substations
Exceedance of Directive 2013/35/EU action levels (ALs)

Limitations

Case study design
Measurements conducted at two substations only
Substations described as old; generalizability to other substations not stated

View raw extracted JSON

{
  "study_type": "exposure_assessment",
  "exposure": {
    "band": "ELF",
    "source": "occupational",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Workers at 220 kV substations in Finland",
  "sample_size": null,
  "outcomes": [
    "Extremely low-frequency electric field levels at 220 kV substations",
    "Exceedance of Directive 2013/35/EU action levels (ALs)"
  ],
  "main_findings": "In measurements conducted at two old 220 kV substations in Finland, the higher action level (AL) of 20 kV m-1 was exceeded at both substations.",
  "effect_direction": "unclear",
  "limitations": [
    "Case study design",
    "Measurements conducted at two substations only",
    "Substations described as old; generalizability to other substations not stated"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "occupational exposure",
    "extremely low-frequency",
    "electric fields",
    "substation",
    "220 kV",
    "Directive 2013/35/EU",
    "action levels",
    "Finland"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.95,
      "reason": "Assesses worker exposure to ELF electric fields at high-voltage substations and compares to regulatory action levels."
    }
  ]
}

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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: 10.1093/rpd/ncx023
PubMed: Not supplied

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