千葉縣柏市焚化灰的固化物有放射性

Recently the Yomiuri News reported the following:
千葉県柏市は１１日、ごみ清掃工場の南部クリーンセンターで、焼却灰の固化物から最大で１キロ・グラム当たり７万８００ベクレルの放射性セシウムを検出したと発表した。
隣接する同県流山市も同日、同市クリーンセンター焼却場の灰から同２万８１００ベクレルの放射性セシウムが検出されたと発表した。
　環境省は、一般ごみ焼却施設から出る焼却灰から同８０００ベクレル超の放射性セシウムが検出された場合、埋め立て処分せずに一時保管するよう通知している。柏市は６月下旬の検出後、保管していたが、検出前に最終処分場に搬入された灰から４万８９００ベクレルの放射性セシウムが検出された。また、流山市は検出後の９日、秋田県内の処分施設に向け、発送していた。
　庭木の枝切りなどで出た一般ごみに放射性セシウムが付着していた可能性があり、焼却灰を溶融施設で溶かした時に出る排ガス中の灰を固化した際、放射性物質が濃縮されたとみられるという。
(試譯文)
On the 11th, the Chiba Prefecture's Oak city announced that they had detected in the maximum 70,800 Becquerel radioactive cesium in one kilogram of the solidified material in the incineration ash at the Southern Part clean center of the garbage cleaning factory.
On the same day in the same Prefecture in nearby Nagareyama city, it was announced that 28,100 Becquerel radioactive cesium had been detected from the ash of a clean center incineration plant.
In general, the Ministry of the Environment would give notice when radioactive cesium of 8000 Becquerel or more was detected from the incineration ash that came out of garbage incinerator, giving advice to keep it temporarily without the reclaiming disposal. In the Oak City, after it was detected in late June, it was kept. Before detection, 48,900 Becquerel radioactive cesium was detected from the ash that had been carried to the final disposal dump. Moreover, in Nagareyama City on the 9th after it was detected, it was sent to the disposal facilities in the Akita prefecture.
While there was a possibility that radioactive cesium could adhere to general garbage coming out from cut branch of garden tree etc, it was thought that in the ash melting facility when the ash in exhaust gas that came out from the melting process was solidified, the radioactive substance would be concentrated.

The government should exercise care in handling the radioactive substance, for public health reasons.