A Review on the Effects of Thermal Inversions and Electromagnetic Fields on Cell Cultures and Wireless Communications

2023 · Harm · Insufficient evidence

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HarmInsufficient evidencePaper 358

Study snapshot

Publicationmanual · 2023

Study typereview

Reported directionHarm

Evidence ratingInsufficient

Abstract

A Review on the Effects of Thermal Inversions and Electromagnetic Fields on Cell Cultures and Wireless Communications López-Álvarez C, López-Martín ME, Rodríguez-González JA, Ares-Pena FJ. A Review on the Effects of Thermal Inversions and Electromagnetic Fields on Cell Cultures and Wireless Communications. Sensors. 2023; 23(23):9567. doi.org Abstract Thermal inversions, typical in the winter season, consist of cold air at the Earth’s surface being trapped under a layer of warmer air. Such an effect keeps normal convective overturning of the atmosphere from penetrating through. This phenomenon highly increases the toxicity of the atmosphere, while modifying its dielectric constant, resulting in major implications in terms of public health and wireless communications. Indeed, air pollution in large cities (related, in most cases, to particulate matter that consists of different chemical components, which can have warming or cooling effects) is primarily caused by chemical and photochemical reactions in the atmosphere. Appropriate usage of array antennas allows the effective tracking of changes in humidity (e.g., coated Yagi-Uda antennas, which do not interfere with 5G) and in the dielectric constant (e.g., optimized quasi-Yagi-Uda antennas, yielding to accurate measurements of sulfides and black carbon concentration). Remarkably, important health effects come from the combined action of electromagnetic fields with fine and coarse black carbon particles. The appearance of ducts, which are caused by thermal inversions, provokes the creation of super-refractive regions in the troposphere as well, which result in the anomalous propagation of wireless communications. Conclusions Thermal inversions, typically associated with winter season, consist of cold air at the Earth’s surface being trapped under a layer of warmer air. Such an effect keeps normal convective overturning of the atmosphere from penetrating through. This phenomenon increases the toxicity of the atmosphere greatly, while modifying its dielectric constant, resulting in major implications in terms of public health and wireless communications. Indeed, air pollution in large cities (related, in most of the cases, to particulate matter that consists of different chemical components, which can have warming or cooling effects) is primarily caused by chemical and photochemical reactions in the atmosphere. The appropriate usage of array antennas allows the effective tracking of changes in humidity (e.g., coated Yagi-Uda antennas, which do not interfere with 5G) and in the dielectric constant (e.g., optimized quasi-Yagi-Uda antennas, yielding to accurate measurements of sulfides and black carbon concentration). Remarkably, important health effects come from the combined action of electromagnetic fields with fine and coarse black carbon particles. The appearance of ducts, which are caused by thermal inversions, provokes the creation of super-refractive regions in the troposphere as well, which result in the anomalous propagation of wireless communications. Previous studies showed that radiofrequency drastically increased the toxicity induced by BC, involving a modification in the immune response of macrophages. This would increase the inflammatory response, activating apoptosis and accelerating cell toxicity. As a result, there is still a need for in- depth in vivo studies focused on the repercussions of such environmental agents on human hypersensitivity reactions and autoimmune disorders. Open access paper: mdpi.com

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 typereview

Effect directionharm

PopulationNot supplied

Sample sizeNot supplied

ExposureRF

Evidence strengthInsufficientConfidence: 66% · Peer reviewed: yes

Main findings

The review describes thermal inversions as increasing atmospheric toxicity and modifying dielectric properties with implications for public health and wireless communications. It reports that previous studies showed radiofrequency exposure drastically increased toxicity induced by black carbon, involving modification of macrophage immune response, increased inflammatory response, activation of apoptosis, and accelerated cell toxicity; it notes a need for further in vivo studies on hypersensitivity and autoimmune disorders.

Outcomes measured

Cell culture toxicity (black carbon-related)
Immune response changes in macrophages
Inflammatory response
Apoptosis
Wireless communications propagation anomalies (ducting/super-refraction)
Atmospheric dielectric constant changes
Humidity/dielectric monitoring via array antennas

Limitations

Review article; methods for literature search/selection not described in the provided abstract
Key exposure parameters (frequency, intensity/SAR, duration) not provided in the abstract
Findings about RF increasing black carbon toxicity are attributed to prior studies without details in the abstract
Calls for in vivo studies, implying limited direct evidence on human outcomes

View raw extracted JSON

{
  "study_type": "review",
  "exposure": {
    "band": "RF",
    "source": "wireless communications",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Cell culture toxicity (black carbon-related)",
    "Immune response changes in macrophages",
    "Inflammatory response",
    "Apoptosis",
    "Wireless communications propagation anomalies (ducting/super-refraction)",
    "Atmospheric dielectric constant changes",
    "Humidity/dielectric monitoring via array antennas"
  ],
  "main_findings": "The review describes thermal inversions as increasing atmospheric toxicity and modifying dielectric properties with implications for public health and wireless communications. It reports that previous studies showed radiofrequency exposure drastically increased toxicity induced by black carbon, involving modification of macrophage immune response, increased inflammatory response, activation of apoptosis, and accelerated cell toxicity; it notes a need for further in vivo studies on hypersensitivity and autoimmune disorders.",
  "effect_direction": "harm",
  "limitations": [
    "Review article; methods for literature search/selection not described in the provided abstract",
    "Key exposure parameters (frequency, intensity/SAR, duration) not provided in the abstract",
    "Findings about RF increasing black carbon toxicity are attributed to prior studies without details in the abstract",
    "Calls for in vivo studies, implying limited direct evidence on human outcomes"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "thermal inversion",
    "air pollution",
    "black carbon",
    "particulate matter",
    "dielectric constant",
    "ducting",
    "super-refraction",
    "wireless communications",
    "radiofrequency",
    "macrophages",
    "inflammation",
    "apoptosis",
    "cell cultures",
    "array antennas",
    "Yagi-Uda",
    "5G"
  ],
  "suggested_hubs": [
    {
      "slug": "5g-policy",
      "weight": 0.28,
      "reason": "Mentions 5G in the context of antennas that do not interfere with 5G and wireless communications propagation effects."
    }
  ]
}

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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: 10.3390/s23239567
PubMed: Not supplied

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