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St. Louis, June 25, 2002
Radiation from cell phones doesn’t appear to cause cancer in rats, according to a study by researchers at Washington University School of Medicine in St. Louis. The research team exposed rats to the two most common types of cell phone radiation for four hours a day, five days a week for two years.
“We tried to mimic a high level of exposure that humans might experience,” says study leader Joseph L. Roti Roti, Ph.D., professor of radiation oncology, of biochemistry and molecular biophysics and of cell biology and physiology. “We found no statistically significant increases in any tumor type, including brain, liver, lung or kidney, compared to the control group.” Roti Roti will present the findings on June 25 at the Bioelectromagnetic Society meeting in Quebec City, Quebec.
For more than a decade, a public debate has asked whether cell phone radiation causes cancer, particularly brain cancer. Roti Roti’s long-term, industry-funded study was undertaken to address that question. The research examined whether chronic exposure to radio frequency (RF) radiation at two common cell phone signals 835.62 megahertz, a frequency used by analogue cell phones, and 847.74 megahertz, a frequency used by digital cell phones caused brain tumors in rats.
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