Decontamination Effects of Bark Washing with a High-pressure Washer on Peach [<i>Prunus persica</i> (L.) Batsch] and Japanese Persimmon (<i>Diospyros kaki</i> Thunb.) Contaminated with Radiocaesium during Dormancy

• Sato Mamoru

  Fruit Tree Research Center, Fukushima Agricultural Technology Center

• Abe Kazuhiro

  Fruit Tree Research Center, Fukushima Agricultural Technology Center

• Kikunaga Hidetoshi

  Research Center for Electron Photon Science, Tohoku University

• Takata Daisuke

  Graduate School of Agricultural and Life Science, The University of Tokyo

• Tanoi Keitaro

  Graduate School of Agricultural and Life Science, The University of Tokyo

• Ohtsuki Tsutomu

  Research Center for Electron Photon Science, Tohoku University

• Muramatsu Yasuyuki

  Faculty of Science, Gakushuin University

Bibliographic Information

Other Title

• 休眠期に放射性セシウム汚染されたモモ［<i>Prunus persica</i>（L.）Batsch］およびカキ（<i>Diospyros kaki</i> Thunb.）における高圧洗浄機を用いた樹皮除染の効果
• Decontamination Effects of Bark Washing with a High-pressure Washer on Peach [Prunus persica (L.) Batsch] and Japanese Persimmon (Diospyros kaki Thunb.) Contaminated with Radiocaesium during Dormancy
• Decontamination effects of bark washing with a high-pressure washer on peach [Prunus persica (L.) Batsch] and Japanese persimmon (Diospyros kaki Thumb.)contaminated with radiocaesium during dormancy

Abstract

The effect of bark washing with a high-pressure washer on deciduous trees contaminated during dormancy by radiocaesium fallout derived from the Fukushima Daiichi Nuclear Power Plant accident was examined using peach [Prunus persica (L.) Batsch] and Japanese persimmon (Diospyros kaki Thunb.). Eighteen-year-old peach trees (‘Akatsuki’) were bark-washed twice with a high-pressure washer on July 5 and 27, 2011. Seven-year-old peach trees (‘Kawanakajima Hakuto’) were bark-washed on January 24, 2012, and thirty-year-old Japanese persimmon trees (‘Hachiya’) were bark-washed on December 21, 2011. For the peach trees, most of the bark was not removed by washing with a high-pressure washer. In contrast, the rough bark of Japanese persimmon was removed completely. No significant differences in the ¹³⁷Cs concentration of ‘Akatsuki’ fruit were found between the treatments conducted in the summer of 2011. Upon the bark washing of peach ‘Akatsuki’ trees in summer, the possibility of secondary contamination of leaves via the leachate containing ¹³⁷Cs was likely. The ¹³⁷Cs concentrations in fruits and leaves of peach ‘Kawanakajima Hakuto’ collected in summer 2012 were decreased significantly by washing treatment conducted in winter 2011–2012. In the year after treatment, the ¹³⁷Cs concentrations in fruits and leaves of Japanese persimmon were significantly decreased by the treatment. The effect of the bark washing on decreasing ¹³⁷Cs contents in fruits and leaves was greater in Japanese persimmon than in peach. The results for ‘Kawanakajima Hakuto’ and ‘Hachiya’ demonstrated the possibility of additive contamination.

Journal

• The Horticulture Journal

  The Horticulture Journal 84 (4), 295-304, 2015

  The Japanese Society for Horticultural Science

Keywords

• contamination
• Fukushima Daiichi Nuclear Power Station
• high-pressure washing
• migration via bark
• radioactive fallout

Details

• CRID: 1390001205759440768
• NII Article ID: 130005105345
• NII Book ID: AA12708073
• DOI: 10.2503/hortj.mi-054
• ISSN: 21890110
• ISSN: 21890102
• NDL BIB ID: 026813051
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026813051
• Web Site: https://www.jstage.jst.go.jp/article/hortj/84/4/84_MI-054/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed