6 more high-level radiation exposure cases found

The health ministry has found that the estimated level of accumulated internal radiation exposure has exceeded the legal limit for 6 more employees who worked shortly after the meltdown accident at the Fukushima Daiichi nuclear power plant in March 2011.

The ministry reexamined estimates on some 20-thousand workers based on a formula used by Tokyo Electric Power Company, which is stricter than some of its contractors.

Changes were observed in the readings of 450 workers, 431 of whom saw increased levels of radiation.
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