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Gryz K et al, (March 2015) The Role of the Location of Personal Exposimeters on the Human Body in Their Use for Assessing Exposure to the Electromagnetic Field in the Radiofrequency Range 98-2450 MHz and Compliance Analysis: Evaluation by Virtual Measurements, Biomed Res Int. 2015;2015:272460. doi: 10.1155/2015/272460

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Authors not listed · 2015

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Personal EMF monitors can give readings up to 233% wrong depending on body placement location.

Plain English Summary

Summary written for general audiences

Researchers used computer modeling to test how the human body affects radiofrequency exposure measurements from personal monitoring devices worn at different body locations. They found that body placement dramatically altered readings by up to 233%, with waist and chest positions providing the most reliable measurements for compliance testing.

Why This Matters

This research exposes a critical flaw in how we measure EMF exposure in real-world conditions. The science demonstrates that your body isn't just a passive recipient of radiofrequency radiation - it actively influences the electromagnetic field around you, creating measurement errors of over 200%. What this means for you is that current exposure assessments may be wildly inaccurate, potentially underestimating or overestimating your actual EMF dose by more than double. The reality is that most studies and safety standards rely on measurements that don't account for these body-interaction effects. This matters because regulatory agencies base exposure limits on idealized conditions that don't reflect how EMF actually behaves around human bodies. The evidence shows we need more sophisticated measurement approaches to truly understand our daily EMF exposure levels.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 98-2450 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 98-2450 MHzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2015). Gryz K et al, (March 2015) The Role of the Location of Personal Exposimeters on the Human Body in Their Use for Assessing Exposure to the Electromagnetic Field in the Radiofrequency Range 98-2450 MHz and Compliance Analysis: Evaluation by Virtual Measurements, Biomed Res Int. 2015;2015:272460. doi: 10.1155/2015/272460.
Show BibTeX
@article{gryz_k_et_al_march_2015_the_role_of_the_location_of_personal_exposimeters_on_the_human_body_in_their_use_for_assessing_exposure_to_the_electromagnetic_field_in_the_radiofrequency_range_98_2450_mhz_and_ce614,
  author = {Unknown},
  title = {Gryz K et al, (March 2015) The Role of the Location of Personal Exposimeters on the Human Body in Their Use for Assessing Exposure to the Electromagnetic Field in the Radiofrequency Range 98-2450 MHz and Compliance Analysis: Evaluation by Virtual Measurements, Biomed Res Int. 2015;2015:272460. doi: 10.1155/2015/272460},
  year = {2015},
  doi = {10.1155/2015/272460},
  
}

Quick Questions About This Study

Measurement errors ranged from -96% to +133% compared to actual field strength, depending on where the exposimeter was positioned on the human body during radiofrequency exposure testing.
Waist placement on the back side or front chest positioning provided the most reliable measurements, reducing uncertainty ranges compared to other body locations for radiofrequency exposure assessment.
Yes, researchers suggest applying mathematical correction factors to measurement results or exposure limit values to compensate for body-interaction effects that distort personal exposimeter readings.
The human body significantly influences electromagnetic fields in the 98-2450 MHz range, acting as a conductor that distorts the radiofrequency environment around personal monitoring devices.
Single body-worn exposimeters remain significantly less accurate than stationary spot measurements for assessing unperturbed electromagnetic field strength, even with optimal body placement and correction factors.