Details

Autor(en) / Beteiligte

• Seyama, Tomoko
• Arakawa, Ryohei
• Machida, Shogo
• Yoshida, Sota
• Maru, Akihiko
• Baba, Kei’ichi
• Kobayashi, Yoshinori
• Kaida, Rumi
• Taji, Teruaki
• Sakata, Yoichi
• Iijima, Tomoaki
• Hayashi, Takahisa

Titel

Intake of Radionuclides in the Trees of Fukushima Forests 3. Removal of Radiocesium from Stem Wood, Cryptomeria Japonica (L.f.) D. Don

Ist Teil von

• Forests, 2020-05, Vol.11 (5), p.589

Ort / Verlag

Basel: MDPI AG

Erscheinungsjahr

2020

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Nuclear power plant accidents have dispersed radiocesium into the atmosphere to contaminate trees with no turnover in heartwood, as occurred in Fukushima, and as has persisted for over 30 years around Chernobyl. Here we employ the ponding method, in which radiocesium can be flushed out from the cross-cut edges of Japanese cedar, Cryptomeria japonica (L.f.) D. Don., stem with water due to xyloglucan degradation in tracheids. Furthermore, lab-scale ponding experiments have shown that a non-detectable level of radiocesium has been observed not only in the pool water used for 575 days but also in the water containing recombinant xyloglucanase. This traditional technology is now a new biotechnology.