水田モデル生態系における除草剤ナプロアニリドの運命

王 一雄, 黄 冠良, 謝 亞寧, 陳 玉麟

doi:10.1584/jpestics.17.3_161

水田モデル生態系における除草剤ナプロアニリドの運命

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王一雄

Department of Agricultural Chemistry, National Taiwan University
黄冠良

Department of Agricultural Chemistry, National Taiwan University
謝亞寧

Department of Agricultural Chemistry, National Taiwan University
陳玉麟

Department of Agricultural Chemistry, National Taiwan University

書誌事項

タイトル別名

Fate of the Herbicide Naproanilide in a Rice Paddy Model Ecosystem
水田モデル生態系における除草剤ナプロアニリドの運命〔英文〕
スイデンモデルセイタイケイニオケルジョソウザイナプロアニリドノ

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説明

The metabolic fate of naproanilide was studied by using a ¹⁴C-labelled compound in a rice paddy model ecosystem in the laboratory. Seven metabolites, 2-(2-naphthoxy)propionic acid, methyl-2-(2-naphthoxy)propionate, 2-naphthol, 2, 3-naphthalenediol, 2, 6-naphthalenediol, 2, 7-naphthalenediol, 2-hydroxy-1, 4-naphthoquinone were identified and two unknown compounds were detected. In a 23-day experiment, 78.1, 7.8 and 1.5% of the total radioactivity were found in the sand, water and biota, respectively. The ecological magnification (EM) values were much smaller and the biodegradability indices (BI) values were much greater than those of persistent chlorinated hydrocarbon insecticides for these biota. Naproanilide seems to be degradable from an evironmental standpoint.