3,138 Studies Reviewed. 77.4% 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.

The effect of chronic exposure to 835.62 MHz FDMA or 847.74 MHz CDMA radiofrequency radiation on the incidence of spontaneous tumors in rats.

No Effects Found

La Regina M, Moros EG, Pickard WF, Straube WL, Baty J, Roti Roti JL. · 2003

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Two-year rat study found no cancer increase from cell phone radiation at brain exposure levels similar to typical phone use.

Plain English Summary

Summary written for general audiences

Researchers exposed 480 rats to cell phone radiation for 4 hours daily over 2 years to see if it caused cancer. They tested two types of signals (FDMA and CDMA) at levels similar to what your brain absorbs during phone calls. The study found no increase in tumors of any type compared to unexposed rats.

Study Details

This study was designed to determine whether chronic exposure to radiofrequency (RF) radiation from cellular phones increased the incidence of spontaneous tumors in F344 rats.

Eighty male and 80 female rats were randomly placed in each of three irradiation groups. The sham gr...

This number was an average from several measurement locations inside the brain, and it takes into ac...

We conclude that chronic exposure to 835.62 MHz FDMA or 847.74 MHz CDMA RF radiation had no significant effect on the incidence of spontaneous tumors in F344 rats.

Cite This Study
La Regina M, Moros EG, Pickard WF, Straube WL, Baty J, Roti Roti JL. (2003). The effect of chronic exposure to 835.62 MHz FDMA or 847.74 MHz CDMA radiofrequency radiation on the incidence of spontaneous tumors in rats. Radiat Res. 160(2):143-151, 2003.
Show BibTeX
@article{m_2003_the_effect_of_chronic_3170,
  author = {La Regina M and Moros EG and Pickard WF and Straube WL and Baty J and Roti Roti JL.},
  title = {The effect of chronic exposure to 835.62 MHz FDMA or 847.74 MHz CDMA radiofrequency radiation on the incidence of spontaneous tumors in rats.},
  year = {2003},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/12859224/},
}

Quick Questions About This Study

Researchers exposed 480 rats to cell phone radiation for 4 hours daily over 2 years to see if it caused cancer. They tested two types of signals (FDMA and CDMA) at levels similar to what your brain absorbs during phone calls. The study found no increase in tumors of any type compared to unexposed rats.