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Radioactive cesium exceeding the government limit of 100 becquerels per kilogram was detected in rice crops from Minamisoma, Fukushima Prefecture, last year, including areas located more than 20 km from the crippled nuclear plant.
Farm ministry officials said they could not deny the possibility that radioactive dust was stirred up when Tepco cleaned up debris at the No. 3 reactor last August and that the dust could have made its way north to Minamisoma.
The ministry told Tepco in March to take measures to prevent dust dispersal, according to the officials.
A Tepco spokesman said the company does not deny the possibility that its cleanup work is to blame but added it isn’t clear whether that was the direct cause of the contamination.
Read more at Debris cleanup at Fukushima reactor may have contaminated rice crops
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