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Erythropoietic changes in rats after 2.45 GJz nonthermal irradiation.

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Busljeta I, Trosic I, Milkovic-Kraus S. · 2004

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Non-thermal 2.45 GHz radiation disrupted blood cell production and increased DNA damage in bone marrow at power levels similar to nearby WiFi devices.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to 2.45 GHz radiation (WiFi frequency) for 2 hours daily and found it disrupted blood cell production in bone marrow while increasing genetic damage markers. These effects occurred at non-heating power levels, suggesting biological impacts below thermal thresholds.

Why This Matters

This study reveals how microwave radiation at 2.45 GHz can disrupt one of our body's most fundamental processes: blood cell production. The power density used (5-10 mW/cm²) is within range of what you might encounter from WiFi routers and other wireless devices in your immediate vicinity, though typically for shorter durations. What makes this research particularly significant is that it demonstrates clear biological effects at non-thermal levels, challenging the outdated assumption that EMF radiation is only harmful when it heats tissue. The increased micronucleus formation is especially concerning, as this indicates DNA damage in developing blood cells. While this is an animal study, the bone marrow effects observed here add to a growing body of evidence suggesting our current safety standards may not adequately protect against the biological impacts of chronic microwave exposure.

Exposure Details

Power Density
5 - 10 µW/m²
Source/Device
2.45 GHz
Exposure Duration
2 hours daily, 7 days a week

Exposure Context

This study used 5 - 10 µW/m² for radio frequency:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 5 - 10 µW/m²Extreme Concern - 1,000 uW/m2FCC Limit - 10M uW/m2Effects observed in the Slight Concern rangeFCC limit is 2,000,000x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.45 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.45 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

The purpose of this study was to observe the erythropoietic changes in rats subchronically exposed to radiofrequency microwave (RF/MW) irradiation at nonthermal level

Adult male Wistar rats (N=40) were exposed to 2.45 GHz continuous RF/MW fields for 2 hours daily, 7 ...

In the exposed animals erythrocyte count, haemoglobin and haematocrit were increased in peripheral b...

In the applied experimental condition, RF/MW radiation might cause disturbance in red cell maturation and proliferation, and induce micronucleus formation in erythropoietic cells.

Cite This Study
Busljeta I, Trosic I, Milkovic-Kraus S. (2004). Erythropoietic changes in rats after 2.45 GJz nonthermal irradiation. Int J Hyg Environ Health.207(6):549-554, 2004.
Show BibTeX
@article{i_2004_erythropoietic_changes_in_rats_882,
  author = {Busljeta I and Trosic I and Milkovic-Kraus S.},
  title = {Erythropoietic changes in rats after 2.45 GJz nonthermal irradiation.},
  year = {2004},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/15729835/},
}
PubMed: 15729835

Cited By (30 papers)

Quick Questions About This Study

Research shows WiFi frequency radiation (2.45 GHz) can disrupt blood cell production in bone marrow. A 2004 study found daily exposure altered red blood cell counts and decreased bone marrow precursor cells, suggesting WiFi may interfere with normal blood formation processes.
Yes, 2.45 GHz radiation can increase genetic damage markers. Researchers found this WiFi frequency increased micronucleated cells in bone marrow, indicating DNA damage. These effects occurred at non-heating power levels, showing biological impacts below thermal thresholds.
Studies suggest WiFi frequency (2.45 GHz) may negatively impact bone marrow function. Research found it significantly decreased erythropoietic precursor cells, which are essential for red blood cell production, while simultaneously increasing genetic damage markers in bone marrow cells.
Microwave radiation at 2.45 GHz can alter blood composition and production. Studies show it increases red blood cell counts, hemoglobin, and hematocrit in peripheral blood while disrupting normal bone marrow cell development and maturation processes.
WiFi radiation appears to disrupt normal red blood cell development and maturation. Research found 2.45 GHz exposure increased circulating red blood cells but decreased their precursor cells in bone marrow, suggesting interference with the natural blood cell production cycle.