Tuesday, April 26, 2005

Japanese operators say there is no scientific evidence that radio waves affect human cells

Japan's mobile phone operators, NTT DoCoMo, Inc., KDDI Corporation, Vodafone K.K. and TU-KA Cellular Tokyo Inc. have reported interim findings that radio frequency energy from mobile phone base stations does not affect human cells.

Using four human cell lines, two containing established infant and fetal fibroblast cells and two containing cerebral tumor tissues, and examining about 20,000 genes in the human genome (approximately 40,000 genes have been identified), researchers found no effect on cell proliferation, gene expression profile or DNA single-strand breaks. The results seem to indicate the safety of radio waves, as the radio waves used in the experiment were up to 10 times stronger than the limit set forth in radio frequency radiation protection guidelines for base stations.

The research uses an in vitro exposure system developed by NTT DoCoMo. The exposure system generates 2GHz-band Wideband Code Division Multiple Access (W-CDMA) modulated-signal RF fields that meet the IMT-2000 specifications for third generation (3G) mobile communications. (Via Geekzone)

Cell Phone Effects - User Interface Design, Human Computer Interaction (HCI), Ergonomics

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