Carcinogenicity study of GSM and DCS wireless communication signals in B6C3F1 mice.
Tillmann T, Ernst H, Ebert S, Kuster N, Behnke W, Rittinghausen S, Dasenbrock C. · 2007
View Original AbstractTwo-year study of 1,170 mice found no cancer increase from cell phone radiation at levels up to 4.0 W/kg, higher than typical phone use.
Plain English Summary
Researchers exposed 1,170 mice to cell phone radiation from GSM and DCS wireless signals for 2 hours daily over 2 years to test whether this exposure causes cancer. The study found no increase in cancer rates at any of the three radiation levels tested, including the highest level of 4.0 W/kg. Interestingly, male mice actually showed fewer liver tumors at higher radiation doses, though overall tumor rates remained within normal ranges for laboratory mice.
Why This Matters
This large-scale carcinogenicity study represents the type of long-term animal research that regulatory agencies rely on for safety assessments. The highest exposure level of 4.0 W/kg is significantly higher than typical cell phone use, which generates SAR levels around 1.6 W/kg or less. While the researchers found no evidence of increased cancer risk, it's worth noting that this study used whole-body exposure rather than localized exposure patterns typical of actual phone use. The science demonstrates that even at these elevated exposure levels, no carcinogenic effects were observed over the two-year study period. What this means for you is that this research adds to the body of evidence suggesting that wireless radiation at current exposure levels does not increase cancer risk in laboratory animals, though questions remain about long-term human exposure patterns and sensitive populations.
Exposure Details
Study Details
The purpose of this study using a total of 1170 B6C3F1 mice was to detect and evaluate possible carcinogenic effects in mice exposed to radio-frequency-radiation (RFR) from Global System for Mobile Communication (GSM) and Digital Personal Communications System (DCS) handsets as emitted by handsets operating in the center of the communication band, that is, at 902 MHz (GSM) and 1747 MHz (DCS).
Restrained mice were exposed for 2 h per day, 5 days per week over a period of 2 years to three diff...
Regarding the organ-related tumor incidence, pairwise Fisher's test did not show any significant inc...
In conclusion, the present study produced no evidence that the exposure of male and female B6C3F1 mice to wireless GSM and DCS radio frequency signals at a whole body absorption rate of up to 4.0 W/kg resulted in any adverse health effect or had any cumulative influence on the incidence or severity of neoplastic and non-neoplastic background lesions, and thus the study did not provide any evidence of RF possessing a carcinogenic potential.
Show BibTeX
@article{t_2007_carcinogenicity_study_of_gsm_1364,
author = {Tillmann T and Ernst H and Ebert S and Kuster N and Behnke W and Rittinghausen S and Dasenbrock C.},
title = {Carcinogenicity study of GSM and DCS wireless communication signals in B6C3F1 mice.},
year = {2007},
url = {https://pubmed.ncbi.nlm.nih.gov/17019729/},
}