Radiation levels rise four-fold at stricken Japan reactor

March 15, 2011 02:18

FUKUSHIMA, Japan, March 15 (Reuters) - Radiation levels in the air surrounding Japan's quake-stricken nuclear power plant have risen four-fold after a fresh explosion at the site on Tuesday, the plant operator said.

The radiation reading at 08:31am local time (2331 GMT) climbed to 8,217 microsieverts an hour from 1,941 about 40 minutes earlier, Tokyo Eletcric Power Co said.

Japanese authorities say levels would need to reach 1 million or so before causing large-scale radiation sickness.

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