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Fukushima Pref. to stop blanket radiation checks on rice, start random testing via The Mainichi

FUKUSHIMA — The Fukushima Prefectural Government will halt blanket radiation screening of rice produced in the nuclear disaster-hit prefecture in favor of random checks as early as 2020, it has been learned.

Testing all of the prefecture’s annual rice output of some 10 million bags costs 6 billion yen a year. Meanwhile, no cases of rice exceeding the government-set limit of 100 becquerels of radioactive cesium per kilogram have been found in the past three years, according to the prefectural government. However, blanket testing will continue for the time being in areas once subject to evacuation orders in the wake of the Fukushima No. 1 nuclear plant disaster.

When the blanket screening on Fukushima rice began in 2012, there were 71 bags of rice produced that year with radioactive cesium levels exceeding the national limit, accounting for 0.0007 percent of all bags, according to the prefectural government. After natural attenuation of cesium and farmers’ soil management progressed, there were no cases of bags exceeding the limit from 2015 onward, while 99.99 percent of bags dipped under the minimum detection limit of 25 becquerels of cesium per kilogram.

In response, the prefectural government determined that it would be appropriate to switch to random screening after a two- to three-year preparatory period.


In a questionnaire conducted by the prefectural government last year, 40 percent of farmers in Fukushima requested more efficient screening on locally produced rice, while another 40 percent demanded that blanket testing continue. Ten percent said no screening was necessary.

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