Tracing atmospheric nitrate in natural waters using the triple oxygen and nitrogen isotopic compositions as tracers
| Project/Area Number |
19740333
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geochemistry/Astrochemistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
NAKAGAWA Fumiko Hokkaido University, 大学院・理学研究院, 助教 (70360899)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥5,000,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥600,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | 硝酸 / 三酸素同位体組成 / 窒素同位体組成 / 水環境 / 大気沈着 / 海洋 / 湖 / 降水 |
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| Research Abstract |
We have analyzed the triple oxygen and nitrogen isotopic compositions of nitrate in natural waters, such as precipitation (wet deposit), groundwater, lake water, and seawater, using our newly-developed method and determined the source of nitrate in natural waters.
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Report
(3 results)
Research Products
(33 results)
