8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.

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

Measurement of DNA damage after exposure to electromagnetic radiation in the cellular phone communication frequency band (835.62 and 847.74 MHz).

No Effects Found

Malyapa RS, Ahern EW, Straube WL, Moros EG, Pickard WF, Roti Roti JL. · 1997

View Original Abstract
Share:

Cell phone radiation at 0.6 W/kg caused no detectable DNA damage in laboratory cells, though this doesn't rule out other biological effects.

Plain English Summary

Summary written for general audiences

Researchers exposed two types of cells (mouse and human) to cell phone radiation at frequencies used by mobile phones (835-847 MHz) for up to 24 hours to see if it caused DNA damage. They found no DNA damage in either cell type when exposed at a specific absorption rate (SAR) of 0.6 W/kg, which is below current regulatory limits. This suggests that cell phone radiation at this level may not directly break DNA strands in laboratory conditions.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 847.7 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 847.7 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 835.62 and 847.74 MHz Duration: 24 h

Study Details

Mouse C3H 10T1/2 fibroblasts and human glioblastoma U87MG cells were exposed to cellular phone communication frequency radiations to investigate whether such exposure produces DNA damage in in vitro cultures

Two types of frequency modulations were studied: frequency-modulated continuous-wave (FMCW), with a ...

No significant differences were observed between the test group exposed to FMCW or CDMA radiation an...

Our results indicate that exposure of cultured mammalian cells to cellular phone communication frequencies under these conditions at an SAR of 0.6 W/kg does not cause DNA damage as measured by the alkaline comet assay.

Cite This Study
Malyapa RS, Ahern EW, Straube WL, Moros EG, Pickard WF, Roti Roti JL. (1997). Measurement of DNA damage after exposure to electromagnetic radiation in the cellular phone communication frequency band (835.62 and 847.74 MHz). Radiat Res 148(6):618-627, 1997.
Show BibTeX
@article{rs_1997_measurement_of_dna_damage_2921,
  author = {Malyapa RS and Ahern EW and Straube WL and Moros EG and Pickard WF and Roti Roti JL.},
  title = {Measurement of DNA damage after exposure to electromagnetic radiation in the cellular phone communication frequency band (835.62 and 847.74 MHz).},
  year = {1997},
  
  url = {https://meridian.allenpress.com/radiation-research/article-abstract/148/6/618/40733/Measurement-of-DNA-Damage-after-Exposure-to},
}

Quick Questions About This Study

A 1997 study found that 835-847 MHz cell phone radiation at 0.6 W/kg SAR did not break DNA strands in mouse or human cells, even after 24-hour exposure. The alkaline comet assay showed no significant DNA damage compared to unexposed control cells.
Research using 0.6 W/kg SAR exposure found no DNA damage in cultured mammalian cells after up to 24 hours of 835-847 MHz radiation. This SAR level is below current regulatory limits and showed no significant effects on genetic material.
Cells exposed to 847 MHz radiation for up to 24 hours at 0.6 W/kg SAR showed no DNA damage in laboratory conditions. Both FMCW and CDMA signal types produced no significant differences compared to unexposed control groups.
A 1997 study comparing CDMA and FMCW cell phone signals at 835-847 MHz found no difference in DNA damage between the two signal types. Both showed no significant effects on cellular genetic material at 0.6 W/kg SAR.
The alkaline comet assay detected no DNA strand breaks in cells exposed to 835-847 MHz cell phone radiation at 0.6 W/kg SAR. This sensitive test for genetic damage showed no significant differences between exposed and control cell groups.