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DNA & Genetic Damage

DNA damage in Molt-4 T- lymphoblastoid cells exposed to cellular telephone radiofrequency fields in vitro.

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Phillips, J.L., Ivaschuk, O., Ishida-Jones, T., Jones, R.A., Campbell-Beachler, M. and Haggren, W. · 1998

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Cell phone radiation altered DNA in immune cells at power levels 100 times below current safety limits.

Plain English Summary

Summary written for general audiences

Researchers exposed immune system cells to radiofrequency radiation from cell phone signals at extremely low power levels for 2 to 21 hours. They found that very low exposures actually reduced DNA damage, while slightly higher exposures increased DNA breaks in the cellular genetic material. This suggests that even minimal RF radiation can alter DNA integrity in immune cells, though the effects varied depending on the specific exposure level.

Why This Matters

This study reveals something crucial that the wireless industry prefers you don't know: even at power levels far below current safety limits, cell phone radiation can measurably alter DNA in immune system cells. The exposures used here (0.0024 to 0.024 watts per kilogram) are roughly 100 times lower than the SAR limits your phone is allowed to emit. What makes this research particularly significant is the non-linear dose response - meaning more exposure doesn't always equal more damage, but rather that biological systems can react unpredictably to RF radiation at any level. The fact that these effects occurred in T-lymphocytes, critical immune system cells that help fight infections and cancer, raises important questions about long-term health consequences. While the study shows both increases and decreases in DNA damage depending on exposure levels, any alteration of genetic material in immune cells deserves serious attention from regulators and consumers alike.

Exposure Details

SAR
0.0024, 0.024 W/kg
Source/Device
813.5625 MHz (iDEN)
Exposure Duration
2 h and 21 h

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.0024, 0.024 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Slight Concern rangeFCC limit is 667x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 813.6 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 813.6 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

The aim of this study is to observe DNA damage in Molt-4 T- lymphoblastoid cells exposed to cellular telephone radiofrequency fields in vitro.

Molt-4 T-lymphoblastoid cells have been exposed to pulsed signals at cellular telephone frequencies ...

It was found that: 1) exposure of cells to the iDEN® signal at an SAR of 2.4 μW g−1 for 2 h or 21 h ...

The data indicate a need to study the effects of exposure to RF signals on direct DNA damage and on the rate at which DNA damage is repaired.

Cite This Study
Phillips, J.L., Ivaschuk, O., Ishida-Jones, T., Jones, R.A., Campbell-Beachler, M. and Haggren, W. (1998). DNA damage in Molt-4 T- lymphoblastoid cells exposed to cellular telephone radiofrequency fields in vitro. Bioelectrochem. Bioenerg. 45:103-110, 1998.
Show BibTeX
@article{phillips_1998_dna_damage_in_molt4_768,
  author = {Phillips and J.L. and Ivaschuk and O. and Ishida-Jones and T. and Jones and R.A. and Campbell-Beachler and M. and Haggren and W.},
  title = {DNA damage in Molt-4 T- lymphoblastoid cells exposed to cellular telephone radiofrequency fields in vitro.},
  year = {1998},
  
  url = {https://www.sciencedirect.com/science/article/abs/pii/S0302459898000749},
}

Quick Questions About This Study

Yes, a 1998 study found that 813.5 MHz iDEN signals at 24 μW/g increased DNA damage in T-lymphoblastoid immune cells after 2-21 hours of exposure. However, the same cells showed reduced DNA damage at lower power levels of 2.4 μW/g, suggesting complex dose-dependent effects.
Both iDEN (813.5 MHz) and TDMA signals showed similar patterns in laboratory studies of immune cells. At very low power levels, both reduced DNA damage, while higher exposures increased genetic breaks. The effects depended more on power level than signal type.
DNA changes in immune cells occurred within 2 hours of exposure to 813.5 MHz iDEN radiation at 24 μW/g power levels. The same effects persisted after 21 hours, suggesting that genetic damage can happen relatively quickly with radiofrequency exposure.
Research with 813.5 MHz signals found that extremely low power exposures (2.4 μW/g) actually decreased DNA damage in immune cells, while slightly higher levels increased it. This suggests radiofrequency radiation may have hormetic effects, where minimal doses trigger protective cellular responses.
T-lymphoblastoid cells are immune system cells that researchers use to study genetic damage from radiofrequency exposure. The 1998 study used these cells because they're sensitive to DNA changes and represent how RF radiation might affect your body's infection-fighting capabilities.