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Title Transcription
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
Title Alternative
Groundwater pollution from nitrate-N to arsenic of Yumigahama sand-bar,San'in district,Japan
File
language
jpn
Author
Douzen, Kaori
Description
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.
Journal Title
島根大学地球資源環境学研究報告
Volume
19
Start Page
57
End Page
64
ISSN
13439774
Published Date
2000-12-25
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Department of Geoscience, Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
徳岡隆夫教授退官記念論誌集
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