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Cleanup of farmland contaminated by the Fukushima nuclear accident

福島原子力事故で汚染された農地の除染

中山 真一 ; 宮原 要 

Nakayama, Shinichi; Miyahara, Kaname

原子力機構が内閣府から受託した除染モデル実証事業では、2011年3月11日に発生した東京電力福島第一原子力発電所事故の結果避難区域となった地域の環境回復のためさまざまな除染手法を試みた。試験対象は建造物,道路,生活場所に隣接する林地に加え、農地も重要な対象であり、本報告では農地の除染について分析・評価した結果を報ずる。除染の効果だけではなく、手法の説明,手順,使用機器,歩掛,他の手法との総合的比較,適用性などについて分析し、最適な除染手法を示した。

In decontamination pilot projects conducted by Japan Atomic Energy Agency (JAEA), under contract with the Japanese Government, many different techniques were tested to determine their applicability to remediate areas evacuated after the Fukushima Dai-ichi nuclear accident of March 11, 2011. In addition to buildings, roads and forest adjacent to living areas, farmland was one of the main decontamination targets and is the focus for this paper. Information on applicable methods/technologies, procedures, machinery, cost, as well as decontamination effects by each methods/technologies were analyzed, and as a result recommended cleanup approach was indicated.

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