RF Safe

SAR and thermal distribution of pregnant woman and child inside elevator cabin

2022 · Unclear · Low evidence

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UnclearLow evidencePaper 840

Numerical dosimetry in a metallic elevator cabin modeled a mobile phone at 1000 MHz and 1800 MHz in three talk positions (parallel, tilt, cheek). The child’s RF exposure (SAR/temperature rise) was reported to be significantly affected by phone position and le…

Study snapshot

Publicationmanual · 2022
Study typeother
Reported directionUnclear
Evidence ratingLow

Abstract

SAR and thermal distribution of pregnant woman and child inside elevator cabin Ioanna Karatsi, Sofia Bakogianni, Stavros Koulouridis. (2022). SAR and thermal distribution of pregnant woman and child inside elevator cabin. International Journal of Microwave and Wireless Technologies, 1-14. doi:10.1017/S1759078722000253. Abstract A detailed dosimetry study of electromagnetic absorption and temperature rise under real scenarios is delivered when a mobile phone is used inside an elevator cabin. Numerically accurate human models of a 7th month pregnant woman and a 5-year-old female child are utilized as the exposed subjects. The female child acts as the phone user. The mobile phone is modeled in three talk positions (parallel, tilt, and cheek) operating at 1000 MHz and 1800 MHz. From the obtained numerical results for the specific absorption rate (SAR) and temperature rise induced by the mobile radiofrequency (RF) radiation, it is found that the child's RF exposure is significantly affected by the phone position and less affected by the relevant position of the human models. The exact opposite case applies for the pregnant woman model and its fetus. Almost all numerical investigations are carried out inside a metallic elevator cabin. Open access paper: bit.ly

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 typeother
Effect directionunclear
Population7th month pregnant woman model (including fetus) and a 5-year-old female child model; child acts as phone user
Sample sizeNot supplied
ExposureRF
Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Numerical dosimetry in a metallic elevator cabin modeled a mobile phone at 1000 MHz and 1800 MHz in three talk positions (parallel, tilt, cheek). The child’s RF exposure (SAR/temperature rise) was reported to be significantly affected by phone position and less affected by the relative position of the human models, while the opposite pattern was reported for the pregnant woman model and fetus.

Outcomes measured

  • specific absorption rate (SAR)
  • temperature rise / thermal distribution

Limitations

  • Numerical modeling study (dosimetry) rather than measurements in humans
  • Exposure duration not stated in abstract
  • SAR values and temperature-rise magnitudes not provided in abstract
  • Most investigations conducted inside a metallic elevator cabin (scenario-specific)
View raw extracted JSON
{
  "study_type": "other",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "7th month pregnant woman model (including fetus) and a 5-year-old female child model; child acts as phone user",
  "sample_size": null,
  "outcomes": [
    "specific absorption rate (SAR)",
    "temperature rise / thermal distribution"
  ],
  "main_findings": "Numerical dosimetry in a metallic elevator cabin modeled a mobile phone at 1000 MHz and 1800 MHz in three talk positions (parallel, tilt, cheek). The child’s RF exposure (SAR/temperature rise) was reported to be significantly affected by phone position and less affected by the relative position of the human models, while the opposite pattern was reported for the pregnant woman model and fetus.",
  "effect_direction": "unclear",
  "limitations": [
    "Numerical modeling study (dosimetry) rather than measurements in humans",
    "Exposure duration not stated in abstract",
    "SAR values and temperature-rise magnitudes not provided in abstract",
    "Most investigations conducted inside a metallic elevator cabin (scenario-specific)"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "dosimetry",
    "SAR",
    "temperature rise",
    "thermal distribution",
    "pregnant woman",
    "fetus",
    "child",
    "mobile phone",
    "elevator cabin",
    "metallic cabin",
    "RF radiation",
    "1000 MHz",
    "1800 MHz",
    "talk position"
  ],
  "suggested_hubs": []
}
AI can be wrong. Always verify against the paper.

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: 10.1017/s1759078722000253
PubMed: Not supplied

Read the original paper →

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