March 15, 2011, 12:45 a.m. EDT Tokyo radiation levels 23 times normal: official HONG KONG (MarketWatch) -- Radiation levels in Tokyo surged to 23 times normal on Tuesday, according to reports that cited readings released by the Tokyo metropolitan government. Radiation levels of .809 micro severts were recorded in central Tokyo at 10.00 a.m. local time (9.00 p.m. U.S. Eastern time), reports said. Southerly winds are believed to be pushing a radioactive plume from the Fukushima Daiichi Nuclear Power Plant, which lies about 150 miles north of Tokyo. http://www.marketwatch.com/story/tokyo-radiation-levels-23-times-normal-officials-2011-03-15-04540