KDDI, J-Phone and Tu-Ka Cellular will join in the research led by NTT DoCoMo that examines the effects of radio waves from mobile phones and base stations at both the cell and genetic level, the companies said. NTT DoCoMo started preparing for the study in July 2001.
The research, which has been commissioned to Mitsubishi Chemical Safety Institute, is to expose as many as one million cell samples to radio waves for a long period of time.
As evaluation and analysis may take at least four years to complete, the companies plan to release updates on the research periodically, Kato said. The four companies will publish the final results.
The study will be conducted in accordance with the Good Laboratory Practice (GLP) standards set by the Japanese government.
It has not been scientifically proven that radio waves from mobile phones and base stations have any effect on people, and the World Health Organization (WHO) has been calling for research to substantiate the safety of these waves.