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Potential of Micranthemum umbrosum for phytofiltration of organic arsenic species from oxic water environment

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タイトル: Potential of Micranthemum umbrosum for phytofiltration of organic arsenic species from oxic water environment
著者: Islam, Md Shariful 著作を一覧する
Sikder, M. Tajuddin 著作を一覧する
Kurasaki, Masaaki 著作を一覧する
キーワード: Dimethylarsinic acid
Monomethylarsonic acid
Phytofiltration
Plant
Water
発行日: 2017年 2月
出版者: Springer
誌名: International journal of environmental science and technology
巻: 14
号: 2
開始ページ: 285
終了ページ: 290
出版社 DOI: DOI:10.1007/s13762-016-1142-9
抄録: Arsenic (As) is a toxic and carcinogenic metalloid that causes various hazards to human health. Phytofiltration is a more eco-friendly and green approach than chemoremediation, or other traditional technologies, for removing As from aquatic environments. Recently, Micranthemum umbrosum was shown as a promising candidate for phytofiltration of inorganic As species. This work examines the potential application of M. umbrosum to phytofiltration of organic As species, such as monomethylarsonic acid (MMAA, CH5AsO3) and dimethylarsinic acid (DMAA, C2H7AsO2), from oxic water environments. M. umbrosum plants were grown in two test concentrations of MMAA and DMAA, or a control, in a hydroponic experiment. After seven days, leaves accumulated 90 +/- 3.2 and 48 +/- 1.6 A mu g As g(-1) (oven dry basis) from 1 A mu g As mL(-1) of water added from MMAA and DMAA, respectively. Bioconcentration factor values and translocation factor values were always greater than 1.0, indicating that M. umbrosum was a good As accumulator and that leaves accumulated significantly higher amounts of As than stems and roots. Analysis of macro- and micronutrient data showed that M. umbrosum had higher resistance to organic As treatments than the control. These results confirm the potential application of M. umbrosum for phytofiltration of organic As from contaminated oxic water environments.
Rights: The final publication is available at link.springer.com
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/68391
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 藏崎 正明

 

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