From Nature:
A Melbourne university has emptied the top floors of one of its buildings after a spate of brain-tumour cases were reported during the past month. Most affected staff worked on the top floor, raising fears that cell-phone masts on top of the building are responsible. But experts say it is far more likely to be an unfortunate coincidence. Since mid-April, five staff from the business school of the Royal Melbourne Institute of Technology (RMIT) University have reported developing brain tumours. Two other cases have been reported since 1999. Of the seven, two are malignant and five benign.
Five of the seven staff worked on the top floor, and all except one have worked in the building for a decade, mostly on the top level. Some staff are concerned that mobile-phone-transmitter towers on top of the building are to blame. But international studies have been unable to provide a convincing link between cancer and the use of mobile phones or the proximity of mobile-phone towers.
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