你的手機輻射多少

http://www.pcmag.com/article2/0,2817,2365147,00.asp

The city of San Francisco has tentatively approved a law that would require vendors of cell phones to post how much radiation they emit.   Last week, the Board of Supervisors voted to delay a vote by one week to consider legal liability issues. But on Tuesday night the board voted 10-1 to approve the measure.