Non-thermal DNA breakage by mobile-phone radiation (1800MHz) in human fibroblasts and in transformed GFSH-R17 rat granulosa cells in vitro.
Diem E, Schwarz C, Adlkofer F, Jahn O, Rudiger H. · 2005
View Original AbstractMobile phone radiation damaged DNA in human cells at everyday exposure levels without heating, challenging thermal-only safety standards.
Plain English Summary
Researchers exposed human cells and rat cells to 1800 MHz mobile phone radiation at levels similar to what phones emit during calls. After 16 hours of exposure, both cell types showed DNA strand breaks (damage to genetic material). The damage occurred at non-thermal levels, meaning it wasn't caused by heating effects, and intermittent exposure patterns caused more damage than continuous exposure.
Why This Matters
This study provides direct evidence that mobile phone radiation can break DNA strands in living cells at power levels similar to those emitted by phones during normal use. The SAR levels tested (1.2 and 2 W/kg) are within the range of typical mobile phone emissions, making these findings highly relevant to everyday exposure. What makes this research particularly significant is that the DNA damage occurred without heating the cells, challenging the wireless industry's long-held position that only thermal effects from EMF can cause biological harm. The finding that intermittent exposure caused more damage than continuous exposure also mirrors real-world phone usage patterns, where radiation pulses on and off during calls and data transmission. This adds to a growing body of evidence suggesting our current safety standards, which only account for heating effects, may be inadequate to protect against the biological impacts of wireless radiation.
Exposure Details
- SAR
- 1.2, 2 W/kg
- Source/Device
- 1800 MHz mobile phone radiation
- Exposure Duration
- 5 min on/10 min off, for 4, 16 and 24 h
Exposure Context
This study used 1.2, 2 W/kg for SAR (device absorption):
- 3x above the Building Biology guideline of 0.4 W/kg
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 Details
The aim of this project was to study the non-thermal DNA breakage by mobile-phone radiation (1800 MHz) in human fibroblasts and in transformed GFSH-R17 rat granulosa cells in vitro.
Cultured human diploid fibroblasts and cultured rat granulosa cells were exposed to intermittent and...
RF-EMF exposure (1800 MHz; SAR 1.2 or 2 W/kg; different modulations; during 4, 16 and 24 h; intermit...
Therefore we conclude that the induced DNA damage cannot be based on thermal effects.
Show BibTeX
@article{e_2005_nonthermal_dna_breakage_by_35,
author = {Diem E and Schwarz C and Adlkofer F and Jahn O and Rudiger H.},
title = {Non-thermal DNA breakage by mobile-phone radiation (1800MHz) in human fibroblasts and in transformed GFSH-R17 rat granulosa cells in vitro.},
year = {2005},
url = {http://www.sciencedirect.com/science/article/pii/S1383571805000896},
}