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Intensity-time dependence dosing criterion in the EMF exposure guidelines in Russia

2018 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 2130

The paper discusses Russian EMF exposure guideline approaches for occupational and public environments, including a threshold principle and a time-dependence (intensity-time) dosing approach. It describes use of PE and MPL to set permissible exposure levels a…

Study snapshot

Publicationmanual · 2018
Study typepolicy
Reported directionUnclear
Evidence ratingInsufficient

Abstract

Intensity-time dependence dosing criterion in the EMF exposure guidelines in Russia Rubtsova N, Paltsev Y, Perov S, Bogacheva E. Intensity-time dependence dosing criterion in the EMF exposure guidelines in Russia. Electromagn Biol Med. 2018;37(1):43-49. doi: 10.1080/15368378.2017.1414056. Abstract Major approaches of the Russian Federation in setting of exposure guidelines to electromagnetic fields (EMF) in occupational and public environments are discussed in this paper. EMF exposure guidelines in Russia are based on the results of hygienic, clinical, physiological, epidemiological and experimental studies and are frequency- dependent. The concept of a threshold principle of occupational and environmental factors due to hazardous exposure effects has been used to set permissible exposure levels of different EMF frequency ranges. The data of experimental studies showed hazardous threshold levels of EMF effects. The main criteria of EMF hazardous exposure evaluated in the experimental study concerned both estimation of threshold levels of chronic (long- term) and acute exposure. Also, this paper contains some recent experimental study data on correlation of long- term radiofrequency and power-frequency EMF exposure effects with regard to time duration, the so-called time-dependence approach. It enables identification of the value of permissible EMF exposure levels depending on exposure duration. This approach is used in occupational exposure guideline setting and requires the introduction of "power exposition" (PE) and "maximal permissible level" (MPL). In general, EMF exposure guidelines are established with regard to possible duration of exposure per day. ncbi.nlm.nih.gov Excerpts Threshold hazardous effect, as mentioned above, is the EMF level that causes significant functional changes of body compensatory systems at the boundary of physiologically normal and abnormal state. Today, the sphere of interests lies in radiofrequency exposure guideline standardization. Currently, the "dosing- time-dependence approach" is used for EMF frequency range from 30 kHz to 300 GHz. This approach specifies values of EMF-exposure permissible levels depending on exposure duration per work day which helps to provide more adequate evaluation of personnel exposure measurements such as "power exposition" (PE) and "maximal permissible level" (MPL), where MPL is the maximum exposure EMF level for very short time per work day (<10 minutes) (Table 1) (Ministry of Health of the Russian Federation, 2016). PE is calculated by multiplying the values of electric field or magnetic field by the square value of exposure duration per 8-hr work day, or by multiplying power density value and the value of exposure duration per work day. An example of EMF Russian hygienic norms for cellular phones is 0.1 mW/cm2 (Rospotrebnadzor of the Russian Federation, 2003). The study directed to EMF rating of cellular phones included examination of cardiovascular and nervous systems of cellular phone users before and after a short-term call of 30 min. The study was also meant to find out intensity-time correlation of EMF biological effects with NMT and GSM systems that were studied at 450, 900 and 1800 MHz carrier frequencies with modulations. Also, comput ersimulation of EMF absorption in biological objects (rats) was performed.

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 typepolicy
Effect directionunclear
PopulationNot supplied
Sample sizeNot supplied
ExposureRF · acute and chronic; exposure duration per work day; MPL <10 minutes; example short-term call 30 min
Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

The paper discusses Russian EMF exposure guideline approaches for occupational and public environments, including a threshold principle and a time-dependence (intensity-time) dosing approach. It describes use of PE and MPL to set permissible exposure levels as a function of exposure duration per day, for frequencies stated as 30 kHz to 300 GHz.

Outcomes measured

  • Exposure guideline setting approach in Russia
  • Threshold levels for hazardous EMF effects (acute and chronic)
  • Intensity-time (duration) dependence / dosing criterion
  • Metrics: power exposition (PE) and maximal permissible level (MPL)

Limitations

  • Narrative discussion of guideline approaches; no specific study methods/results quantified in the abstract
  • No population/sample size details provided for referenced studies
  • Specific effect sizes or health outcome results are not reported in the abstract
View raw extracted JSON
{
  "study_type": "policy",
  "exposure": {
    "band": "RF",
    "source": "occupational and public environments; cellular phones (example)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "acute and chronic; exposure duration per work day; MPL <10 minutes; example short-term call 30 min"
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Exposure guideline setting approach in Russia",
    "Threshold levels for hazardous EMF effects (acute and chronic)",
    "Intensity-time (duration) dependence / dosing criterion",
    "Metrics: power exposition (PE) and maximal permissible level (MPL)"
  ],
  "main_findings": "The paper discusses Russian EMF exposure guideline approaches for occupational and public environments, including a threshold principle and a time-dependence (intensity-time) dosing approach. It describes use of PE and MPL to set permissible exposure levels as a function of exposure duration per day, for frequencies stated as 30 kHz to 300 GHz.",
  "effect_direction": "unclear",
  "limitations": [
    "Narrative discussion of guideline approaches; no specific study methods/results quantified in the abstract",
    "No population/sample size details provided for referenced studies",
    "Specific effect sizes or health outcome results are not reported in the abstract"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "Russia",
    "exposure guidelines",
    "occupational exposure",
    "public exposure",
    "threshold principle",
    "time-dependence",
    "intensity-time dependence",
    "power exposition",
    "maximal permissible level",
    "radiofrequency",
    "power-frequency",
    "30 kHz to 300 GHz",
    "cellular phones",
    "0.1 mW/cm2",
    "GSM",
    "NMT",
    "450 MHz",
    "900 MHz",
    "1800 MHz"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.86,
      "reason": "Discusses occupational EMF exposure guideline setting and duration-based permissible levels (PE, MPL)."
    }
  ]
}
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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: 10.1080/15368378.2017.1414056
PubMed: Not supplied

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