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Tuesday, 15 April 2014

TEPCO under-calculated radiation exposure for 142 Fukushima workers

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The central operating control room of the No. 1 and No. 2 reactors is opened to the media by Tokyo Electric Power Co. (TEPCO) at the crippled Fukushima Daiichi power plant in Okuma, Fukushima Prefecture (AFP Photo / Pool / Koji Sasahara)

Published time: March 27, 2014 01:51

Tokyo Electric Power Co. underestimated internal radiation exposure of 142 workers involved in immediate emergency operations at the damaged Fukushima No. 1 nuclear power plant in March 2011, according to Japan’s Health, Labor and Welfare Ministry.

After reexamining exposure records provided by TEPCO, the Ministry said Tuesday it had increased the 142 workers’ radiation data by an average of 5.86 millisieverts, The Asahi Shimbun reported.

The Ministry said one male employee was exposed to 180 millisieverts. He was initially reported to have been exposed to around 90 millisieverts.

Two other workers were exposed to radiation of 50 to less than 100 millisieverts, the Ministry found.

According to the International Commission on Radiological Protection a person should be exposed to no more than one millisievert per year from all sources of radiation, though it says only doses of more than 100 millisieverts are associated with a higher risk of cancer.

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http://rt.com/news/tepco-radiation-workers-exposure-501/
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