Japan nuke workers nearing max exposure - UPI.com

May 1, 2011 ome nuclear workers at Japan's damaged Fukushima power plant are approaching the maximum allowable annual radiation exposure, power officials said. Prior to the March 11 earthquake and tsunami that badly damaged four of six reactors at Fukushima, Japanese labor law said the maximum radiation nuclear workers could be exposed to per year was 100 millisieverts. Four days after the disaster, the maximum exposure was increased to 250 millisieverts.