ダウンロード数 : ?
タイトルヨミ
ショウサンセイ チッソ オセン カラ ヒソ オセン ヘ サンイン チイキ ユミガハマ サス ノ レイ
タイトル別表記
Groundwater pollution from nitrate-N to arsenic of Yumigahama sand-bar,San'in district,Japan
ファイル
言語
日本語
著者
道前 香緒里
内容記述(抄録等)
Nitrate−N pollution has been widely observed in ground water of Japan which was caused by agricultural practice and increasing amounts of domestic wastes.This paper describes present situation of groundwater of the Yumigahama sandbar,San'in district,Japan.The results show severe contamination of nitrate-N and arsenic occurrences in many tubewells suggesting variation of the redox condition within aquifers.Arsenic solution has been inferred to occur under reducing condition which is not concordant to the oxic condition for the nitrate-N occurrences.High COD values are characteristic in groundwaters of arsenic contamination which may be related to bacterial deterioration of organic matter.This fermentation results in release of arsenic species from sediments and in nitrate reduction.Iron oxyhydroxides(FeOOH)adsorbing As species are not necessary for this reaction,thus iron was not always detected in arsenic contaminated water in Yumigahama.
掲載誌名
島根大学地球資源環境学研究報告
19
開始ページ
57
終了ページ
64
ISSN
13439774
発行日
2000-12-25
NCID
AA11455176
出版者
島根大学総合理工学部地球資源環境学教室
出版者別表記
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
資料タイプ
紀要論文
部局
(旧組織)大学院総合理工学研究科
備考
12-14,16+ / 1993+
徳岡隆夫教授退官記念論誌集
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