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Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.

DNA & Genetic Damage

Cytogenetic effects of exposure to 2.3 GHz radiofrequency radiation on human lymphocytes in vitro.

No Effects Found

Hansteen IL, Clausen KO, Haugan V, Svendsen M, Svendsen MV, Eriksen JG, Skiaker R, Hauger E, Lågeide L, Vistnes AI, Kure EH. · 2009

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This lab study found no chromosome damage in immune cells exposed to cell phone-level RF radiation for one complete cell cycle.

Plain English Summary

Summary written for general audiences

Norwegian researchers exposed human immune cells (lymphocytes) to 2.3 GHz radiofrequency radiation - similar to what cell phones emit - for an entire cell cycle to see if it would damage DNA or chromosomes. They found no statistically significant genetic damage compared to unexposed cells, even when they added a known DNA-damaging chemical to make cells more vulnerable. This suggests that RF radiation at levels used by mobile devices may not directly break chromosomes in immune cells under these laboratory conditions.

Why This Matters

This study represents an important piece of the EMF research puzzle because it tested RF radiation exposure for a full cell cycle - something previous studies hadn't done. The 10 W/m² exposure level is roughly comparable to what you might experience very close to a cell tower or during heavy cell phone use. However, we need to put this negative finding in context. While this study found no chromosomal damage in isolated immune cells, it's one data point among hundreds of studies examining RF bioeffects. The researchers themselves noted a 'weak trend' for more damage when pulsed fields interacted with the DNA-damaging chemical, suggesting RF might amplify existing cellular stress even if it doesn't directly cause damage. The reality is that laboratory studies of isolated cells, while valuable, can't capture the complex interactions that occur in living organisms over months and years of exposure.

Exposure Details

Power Density
1 mW/cm²
Source/Device
2.3 GHz

Exposure Context

This study used 1 mW/cm² 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: 1 mW/cm²Extreme Concern - 1,000 µW/m²FCC Limit - 10M µW/m²Effects observed in the Extreme Concern range (Building Biology)This level is 1 times the FCC limit
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.30 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.30 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

The aim was to test if exposure used in mobile phones and wireless network technologies would induce DNA damage in cultured human lymphocytes with and without a known clastogen.

Lymphocytes from six donors were exposed to 2.3 GHz, 10 W/m(2) continuous waves, or 2.3 GHz, 10 W/m(...

No statistically significant differences were observed between control and exposed cultures. A weak ...

Exposure during the whole cell cycle in inhibited cultures did not resulted in significant differences in chromosomal aberrations as compared to controls.

Cite This Study
Hansteen IL, Clausen KO, Haugan V, Svendsen M, Svendsen MV, Eriksen JG, Skiaker R, Hauger E, Lågeide L, Vistnes AI, Kure EH. (2009). Cytogenetic effects of exposure to 2.3 GHz radiofrequency radiation on human lymphocytes in vitro. Anticancer Res. 29(11):4323-4330, 2009.
Show BibTeX
@article{il_2009_cytogenetic_effects_of_exposure_3065,
  author = {Hansteen IL and Clausen KO and Haugan V and Svendsen M and Svendsen MV and Eriksen JG and Skiaker R and Hauger E and Lågeide L and Vistnes AI and Kure EH.},
  title = {Cytogenetic effects of exposure to 2.3 GHz radiofrequency radiation on human lymphocytes in vitro.},
  year = {2009},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/20032374/},
}
PubMed: 20032374

Cited By (8 papers)

Quick Questions About This Study

No, 2.3 GHz radiofrequency radiation did not cause significant chromosome damage in human lymphocytes (immune cells) during laboratory testing. Norwegian researchers exposed these cells for an entire cell cycle and found no statistically significant genetic damage compared to unexposed cells, even when they made cells more vulnerable with chemicals.
Yes, human lymphocytes can survive full cell cycle exposure to 2.3 GHz radiofrequency radiation without significant chromosomal damage. This 2009 Norwegian study exposed immune cells throughout their complete division cycle and found no statistically significant differences in genetic damage compared to control cells.
The study found a weak trend suggesting pulsed 2.3 GHz fields might cause slightly more chromosomal damage than continuous fields when combined with DNA-damaging chemicals. However, this difference was not statistically significant, and neither pulsed nor continuous exposure alone caused meaningful genetic damage to lymphocytes.
Extended exposure of human immune cells to 2.3 GHz radiation throughout their entire cell cycle (several days) did not produce significant chromosomal damage. The Norwegian researchers found no statistically significant genetic effects even with this prolonged exposure duration in laboratory conditions.
Adding mitomycin C (a DNA-damaging chemical) to lymphocytes showed only a weak, non-significant trend for increased chromosomal damage when combined with pulsed 2.3 GHz radiation. The chemical did not make immune cells significantly more vulnerable to radiofrequency radiation damage in this study.