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Electromagnetic fields at a mobile phone frequency (900 MHz) trigger the onset of general stress response along with DNA modifications in Eisenia fetida earthworms

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Bourdineaud JP, Šrut M, Štambuk A, Tkalec M, Brèthes D, Malarić K, Klobučar GIV · 2017

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DNA damage occurred at radiation levels 100 times below safety limits and persisted 24 hours after exposure ended.

Plain English Summary

Summary written for general audiences

Earthworms exposed to cell phone radiation (900 MHz) for two hours showed DNA damage and stress responses lasting 24+ hours. The radiation levels were 100 times weaker than safety limits, yet still caused genetic changes, suggesting brief low-level EMF exposure creates lasting biological effects.

Why This Matters

This study delivers a sobering reality check about EMF safety assumptions. The researchers found DNA damage and persistent stress responses at radiation levels far below what regulators consider safe - some exposures were 100 times weaker than current limits. What makes this particularly significant is that the effects didn't disappear when the exposure stopped. Even 24 hours later, the earthworms still showed signs of genetic damage and elevated stress proteins. While earthworms aren't humans, they share fundamental cellular processes with us, and this research adds to a growing body of evidence that our current safety standards may be inadequate. The science demonstrates that biological effects can occur at power levels regulators dismiss as harmless, and these effects can persist long after exposure ends.

Exposure Details

SAR
0.00013 - 0.00933 W/kg
Source/Device
900 MHz
Exposure Duration
2 Hours

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.00013 - 0.00933 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the No Concern rangeFCC limit is 12,308x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

The purpose of this study is to observe the Electromagnetic fields at a mobile phone frequency (900 MHz) trigger the onset of general stress response along with DNA modifications in Eisenia fetida earthworms

Eisenia fetida earthworms were exposed to electromagnetic field (EMF) at a mobile phone frequency (9...

All exposure treatments induced significant DNA modifications as assessed by a quantitative random a...

Cite This Study
Bourdineaud JP, Šrut M, Štambuk A, Tkalec M, Brèthes D, Malarić K, Klobučar GIV (2017). Electromagnetic fields at a mobile phone frequency (900 MHz) trigger the onset of general stress response along with DNA modifications in Eisenia fetida earthworms Arh Hig Rada Toksikol. 68(2):142-152, 2017.
Show BibTeX
@article{jp_2017_electromagnetic_fields_at_a_514,
  author = {Bourdineaud JP and Šrut M and Štambuk A and Tkalec M and Brèthes D and Malarić K and Klobučar GIV},
  title = {Electromagnetic fields at a mobile phone frequency (900 MHz) trigger the onset of general stress response along with DNA modifications in Eisenia fetida earthworms},
  year = {2017},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/28665795/},
}
PubMed: 28665795

Cited By (6 papers)

Quick Questions About This Study

Yes, earthworms exposed to 900 MHz cell phone radiation for just two hours showed significant DNA modifications that persisted for at least 24 hours after exposure ended. The radiation levels were 100 times weaker than safety limits, yet still caused genetic changes and stress responses.
A 2017 study found that just two hours of 900 MHz radiation exposure in earthworms triggered stress responses and DNA changes lasting over 24 hours. Heat shock proteins and defense genes remained elevated even after the exposure ended, indicating persistent biological effects.
Yes, earthworms exposed to 900 MHz radiation at levels 100 times weaker than safety limits still experienced significant DNA modifications and cellular stress responses. This suggests current safety standards may not protect against all biological effects of EMF exposure.
Earthworms exposed to 900 MHz radiation showed increased levels of HSP70 heat shock protein and MTCO1 proteins, indicating cellular stress. These stress markers remained elevated even 24 hours after the two-hour exposure period ended, demonstrating lasting biological impact.
Yes, earthworms exposed to 900 MHz cell phone radiation showed significant DNA modifications measured by genetic analysis. The study found a two-fold decrease in DNA hybridization sites that persisted 24 hours after exposure, indicating lasting genetic damage.