[Animal death after exposure to ultra-high frequency waves in the dependence of power flux density and specific absorption rate].

Radiatsionnaia biologiia, radioecologiia · 2007 · Mixed · Low evidence

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MixedLow evidencePaper 6453

Study snapshot

PublicationRadiatsionnaia biologiia, radioecologiia · 2007

Study typeanimal

Reported directionMixed

Evidence ratingLow

Abstract

A comparative analysis and mathematical modeling of laboratory animal sensitivity (mice, rats, rabbits and dogs) to microwave exposure in the dependence of the power flux density (PFD) and the specific absorption rate (SAR) were carried out. The results obtained in our laboratory and some data published by other authors were presented as the dependence of the survival time of various animals during exposure both on PFD and SAR of microwave radiation (0.46; 2.4 and 7 GHz). It is shown that if PFD is used as a dosimetric parameter, the animal sensitivity to nonionizing electromagnetic ultrahigh frequency radiation increased with animal mass. If SAR was used as a dosimetric parameter, the arrangement of animals in accordance with their sensitivity to microwave became quite opposite. Mathematical equations describing the dependence of the survival time of laboratory animals on the duration and the intensity of microwave radiation were obtained. These equations describe the published experimental data and can be used to predict the animal death during the process of microwave irradiation.

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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 typeanimal

Effect directionmixed

PopulationLaboratory animals (mice, rats, rabbits, dogs)

Sample sizeNot supplied

Exposuremicrowave

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

The authors analyzed and modeled survival time of multiple animal species during microwave exposure at 0.46, 2.4, and 7 GHz as a function of power flux density (PFD) and specific absorption rate (SAR). When PFD was used as the dosimetric parameter, sensitivity increased with animal mass; when SAR was used, the ordering of species by sensitivity was opposite. Mathematical equations were derived to describe and predict survival time/death during microwave irradiation.

Outcomes measured

Survival time
Animal death during microwave irradiation

Limitations

Sample size and experimental details are not provided in the abstract.
Exposure duration and intensity ranges are not specified in the abstract.
It is unclear which results are from the authors' laboratory versus previously published data.

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "microwave",
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Laboratory animals (mice, rats, rabbits, dogs)",
  "sample_size": null,
  "outcomes": [
    "Survival time",
    "Animal death during microwave irradiation"
  ],
  "main_findings": "The authors analyzed and modeled survival time of multiple animal species during microwave exposure at 0.46, 2.4, and 7 GHz as a function of power flux density (PFD) and specific absorption rate (SAR). When PFD was used as the dosimetric parameter, sensitivity increased with animal mass; when SAR was used, the ordering of species by sensitivity was opposite. Mathematical equations were derived to describe and predict survival time/death during microwave irradiation.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size and experimental details are not provided in the abstract.",
    "Exposure duration and intensity ranges are not specified in the abstract.",
    "It is unclear which results are from the authors' laboratory versus previously published data."
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "microwave",
    "ultrahigh frequency",
    "nonionizing radiation",
    "power flux density",
    "specific absorption rate",
    "SAR",
    "dosimetry",
    "survival time",
    "animal death",
    "mice",
    "rats",
    "rabbits",
    "dogs",
    "mathematical modeling"
  ],
  "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: Not supplied
PubMed: 17867502

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