The labor ministry said Tuesday that the internal radiation exposure of 142 workers involved in emergency operations at the crippled Fukushima Daiichi nuclear power plant was higher than reported by plant operator Tokyo Electric Power Co.
After recalculating data provided by TEPCO, the Health, Labor and Welfare Ministry found that a male employee was exposed to 180 millisieverts, exceeding the 100-millisievert level that is said to raise the risk of cancer. The man’s exposure was initially reported to be around 90 millisieverts.
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Related article: 福島第一原発の作業員142人 東京電力発表より多量の放射線を浴びる via ロシアの声