RF Safe

On the exposure to mobile phone radiation in trains

Applied Physics Letters · 2005 · No effect · Low evidence

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No effectLow evidencePaper 6817

This theoretical report estimated RF power density inside trains from reflections off metallic wagon walls and simultaneous emissions from multiple nearby mobile phones. The study concluded that power densities remain below reference levels.

Study snapshot

PublicationApplied Physics Letters · 2005
Study typeengineering
Reported directionNo effect
Evidence ratingLow

Abstract

This report presents theoretical estimates of the power density levels which may be reached inside trains. Two possible sources of high levels of radiation are discussed. The first one arises since the walls of the wagons are metallic and therefore bounce back almost all radiation impinging on them. The second is due to the simultaneous emission of a seemingly large number of nearby telephones. The theoretical study presented here shows that power densities stay at values below reference levels always.

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 typeengineering
Effect directionno_effect
Populationtrain passengers
Sample sizeNot supplied
ExposureRF
Evidence strengthLowConfidence: 95% · Peer reviewed: yes

Main findings

This theoretical report estimated RF power density inside trains from reflections off metallic wagon walls and simultaneous emissions from multiple nearby mobile phones. The study concluded that power densities remain below reference levels.

Outcomes measured

  • power density levels inside trains
  • comparison with reference levels

Limitations

  • The study is theoretical and based on estimates rather than direct measurements.
  • No sample size or human health outcomes were reported.
  • Frequency, SAR, and exposure duration were not specified in the abstract.
View raw extracted JSON
{
  "study_type": "engineering",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "train passengers",
  "sample_size": null,
  "outcomes": [
    "power density levels inside trains",
    "comparison with reference levels"
  ],
  "main_findings": "This theoretical report estimated RF power density inside trains from reflections off metallic wagon walls and simultaneous emissions from multiple nearby mobile phones. The study concluded that power densities remain below reference levels.",
  "effect_direction": "no_effect",
  "limitations": [
    "The study is theoretical and based on estimates rather than direct measurements.",
    "No sample size or human health outcomes were reported.",
    "Frequency, SAR, and exposure duration were not specified in the abstract."
  ],
  "evidence_strength": "low",
  "confidence": 0.95,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "mobile phone radiation",
    "train exposure",
    "power density",
    "theoretical estimates",
    "metallic reflections",
    "RF exposure"
  ],
  "suggested_hubs": []
}
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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: 10.1063/1.1940120
PubMed: Not supplied

Read the original paper →

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