| Project/Area Number |
19510010
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
|
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| Research Institution | The University of Shiga Prefecture |
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Principal Investigator |
MARUO Masahiro The University of Shiga Prefecture, 環境科学部, 准教授 (80275156)
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| Project Period (FY) |
2007 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 環境分析 / 地球化学 / 陸水学 / スペシエーション / 鉄(II) |
|---|
| Research Abstract |
Vertical profiles of Fe(II) that might affect the primary production, in the North Basin of Lake Biwa was obtained between 2007-2009. We studied the relationship between Fe(II) concentration, dissolved organic matter (humic substances), and light intensity. Complexation of Fe(II) was suggested because Fe(II) concentration obtained by chemiluminescence was very much smaller that obtained from photometric determination using PDTS. Below the euphotic zone of Lake Biwa, strong correlation between Fe(II) and humic substances concentration was obtained. Existence of humic substances in the lake water retarded the oxidation of Fe(II) probably because of complex formation
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